files_browser: use font for file, folder, and submodule icons

This patch introduces a def that returns the <i> element corresponding to the
type (i.e. file, folder, or submodule) and a span for the text. Tests have been
updated. Old png icons have been removed.

add.png: replace icon-plus-sign with icon-plus-circled

A quick search revealed that some old css code was never used, so it was
removed.

heart_delete.png: use new icon-heart font

A quick search revealed that some old css code was never used, so it was
removed.

tag_green.png: use new icon-bookmark font

A quick search revealed that some old css code was never used, so it was
removed.

icon-lock: use icon-keyhole-circled instead of lock for private repos

The inline 'style' override has been modified to only leave spacing and sizing
(removing color).

icon-lock-open-alt: use icon-globe to signify public repo

Tests are also updated.

lock_open.png: replace icon-unlock-* with icon-lock-open-alt

The inline 'style' override has been modified to only leave spacing and sizing
(removing color).

arrow_inout.png: replace icon-loop with icon-git-compare

A quick search revealed that some old css code was never used, so it was
removed.

rss_16.png: use new icon-rss-squared font

The old png icon had color for its background so the journal template needed to
set it to something so that it wasn't lost to transparency.

A quick search revealed that some old css code was never used, so it was
removed.

public_repo.png: remove unused icon

A quick search revealed that some old css code was never used, so it was
removed.

wrench.png: use new icon-wrench font

A quick search revealed that some old css code was never used, so it was
removed.

group_edit.png: replace icon-group with icon-users

A quick search revealed that some old css code was never used, so it was
removed.

database_link.png: replace icon-folder-close with icon-folder

A quick search revealed that some old css code was never used, so it was
removed.

server_key.png: use new icon-key font

A quick search revealed that some old css code was never used, so it was
removed.

user_edit.png: use new icon-user font

A quick search revealed that some old css code was never used, so it was
removed.

note_add.png: remove icon-file-alt override

We will now use the one from font awesome.

clipboard_16: replace icon-file-text with icon-doc-text-inv

We replace everywhere except for the gist icons since those will be done
differently.

arrow_branch.png: replace icon-code-fork with icon-git-pull-request

A quick search revealed that some old css code was never used, so it was
removed.

database_edit.png: use new icon-file-zip font

Previously, database_edit.png was used for icon-archive class so those have all
been renamed via a search-and-replace.

A quick search revealed that some old css code was never used, so it was
removed.

cog_edit.png: remove unused icon

A quick search revealed that some old css code was never used, so it was
removed.

cog.png: use new icon-gear font

A quick search revealed that some old css code was never used, so it was
removed.

search_16.png: use new icon-search font

A quick search revealed that some old css code was never used, so it was
removed.

book.png: use new icon-book font

A quick search revealed that some old css code was never used, so it was
removed.

contextbar: prepend width and height from icon css classes with 'min-'

This caused the new font icons to be pushed down too far.

font: add custom kallithea font icons from fontello

This does not include the fonts for mercurial nor git since those have
different licenses.

javascript: added missing helper functions to make templates using codemirror work properly. (Issue #11)
* * *
imported patch codemirror-whitespacecleanup

codemirror: updated to version 4.7

wget http://codemirror.net/codemirror-4.7.zip
rm -rf codemirror-4.7 kallithea/public/codemirror/*
unzip codemirror-4.7.zip -x '*.html' '*/test.js'
mv codemirror-4.7/{LICENSE,lib,mode} kallithea/public/codemirror/
hg addremove kallithea/public/codemirror/

email templates: send text/plain part as well

This change adds text parts to the email templates, as
HTML and text templates may be way to different to be
handled automatically. Also, use proper dash-dash-space
signature separator, so the email clients recognise it
for sure.

cleanup-repos: reintroduce paster command

The command was removed in e84116ab7d87 "Removed clenup repos command will be
part of new tools release".

This version is based on the last revision before that, c0bc961ec5d9 "back to
gpl license".

compare: workaround unexpected Mercurial behaviour when finding ancestor of null rev

ancestor(id(0000000000000000000000000000000000000000),7) == 7
- that caused weird pull request diffs and lots of grief when (accidentally)
creating a pull request from the null revision.

Add special handling for the case of null revisions.

hg: make get_ref_revision('rev', '00000000000000') give the null revision

It gave tip revision and caused weird pull request diffs and lots of grief when
(accidentally) creating a pull request from the null revision.

pull requests: abort pending ajax requests before starting new one

Quick navigation and different load times could cause an old result to
overwrite a new one.

pull requests: the node for null is not '0' but 40 * '0'

Fix crash in PR loading

paster: add install-iis command to automate IIS handler generation

A new paster command, install-iis, is added that automates generating
the ISAPI-WSGI file that allows IIS to serve up Kallithea's WSGI application
using IIS' ISAPI filters.

The paster command's output also describes the final steps necessary to complete
IIS installation.

css: fix cut font

the name of the repository got cut below the baseline (on windows? ed.)

config: the default for show_revision_number should be false

Revision numbers are not really that useful and when shared publicly they can
lead to misunderstandings

css: put non-trivial selectors on different lines

Improve legibility.

simplehg: don't quiet Hg output for push

I want to be able to see informational messages from e.g. the Hg Bugzilla
extension.

Here's output without the patch. This is identical to the output produced if
the Bugzilla extension is disabled:

remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
remote: Repository size .hg:158.2 kB repo:0 B total:158.2 kB
remote: Last revision is now r324:6c03abbabb46

and with the patch:

remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
remote: Repository size .hg:158.2 kB repo:0 B total:158.2 kB
remote: Last revision is now r324:6c03abbabb46
remote: bug 3270 already knows about changeset 6c03abbabb46

The last line indicates that the Bugzilla bug text already contains an entry
for that changeset. It's produced by a call to self.ui.status() in the
extension.

I think the point here is that the deleted code is ensuring that the remote hg
(i.e. the Kallithea hg) always runs with the --quiet flag when receiving a
push. This seems an arbitrary decision to me, and one that removes potentially
useful information from the output. I believe this behaviour is different to
that seen by the user if pushing to hgweb (I've not tried it, but inspected the
hgweb source for setting quiet) and is certainly different to pushing over ssh.

middleware: fix typo in force_https backward compatibility code

Typo was introduced in 8e26c46e9abe.

jquery: upgrade to 1.11.1

Downloaded with

$ wget -N http://code.jquery.com/jquery-1.11.1.min.js

The source is available at https://kallithea-scm.org/repos/mirror/jquery/ .

We stay with 1.x to remain compatible with IE8.

We no longer include the map file - it is no longer referenced from the js.

codemirror: move everything to separate codemirror folder - splitting it up in css and js serves no purpose

- but it should perhaps not show up directly in /codemirror ...

Remove gradient code in CSS for selected context bar.

This prevents the background color for the selected tab from becoming
dark grey (instead of a lighter version of the context bar color). It
then makes the context bar and top title bar consistent with one another
in behavior.

Remove gradients in titlebar

This both cleans up the code and fixes the issue where buttons in the
titlebar will have their background color set to the titlebar background
color (with some weird gradient) when the user hovers over them.

Set white foreground color for <h2/> in context bar

$repo/fork and other pages had black text on dark background.

Switch ellipses to right-arrow in header of compare page.

We use a right-arrow at the top of the file-diff sections. This makes
the header do the same thing for consistency.

Improve 'Show by ID' and 'Show by Name' on summary page.

This improves the summary page by switching these buttons to standard buttons,
removing the weird custom CSS class that seemed to try to do magic, but instead
just left the button overflowing the space.

Improve Journal page (fix some broken CSS)

The existing journal page references some CSS from bootstrap, but we are not
currently using bootstrap. This change implements the missing css in our own
style so that the page does not have a broken layout.

files: file path is mandatory in URLs for 2-way diff

It would crash with an internal error when trying to process an empty file
name. Processing of other non-existing file names is still weird.

files: use current revision as default for 'show at' (Issue #31)

Before, clicking 'show at' before selecting a changeset would fail when looking
for 'no revision'.

vcs: close SubprocessIOChunker inputstream used for git (Issue #32)

git clone was leaking file descriptors

javascript: use jQuery for ypjax and rename to asynchtml

The container id is replaced with a $target jQuery array.