Implemented #670 Implementation of Roles in Pull Request
- only owner, reviewer or admin can change status or close pull request

fixed issue #644 When a user is both in read and write group, the permission taken in account is the last saved permission
- added configurable parameters to permission class with two algorithms, higherwin and lowerwin.
- default is set now to higherwin, later we'll make that configurable

remove unused function get_repo_paths

It should probably handle removed repositories somehow if it should live on.

don't recurse into '.hg' of removed repositories

Walking through the content of a '.hg' that has been renamed to 'rm__.hg' on
startup can take a lot of time.

Fixed some issues with edit form
- unified code (but still a lot of duplicated code left over)
- fixed forms
- fixed validators

fixes issue #678 Incorrect diff markup when diff contains >, <, or & symbols
- regex by \W did split &amp; and other to 3 tokens, and escaping was broken

added delete button into repository settings form, it makes more natural to have it there.
Users where confused by my account -> my repos where deletion is also possible

Implemented better support for Wildcard queries
add username column to journal for caching logs after user deletion
added tests for admin journal
migrations

Implemented filtering of admin journal based on Whoosh Query language
ref #210

Implemented #379 defaults settings page for creation of repositories
- locking
- statistics, downloads
- repository type

implemented #663 Admin/permission: specify default repogroup perms
- added migration that adds new default permission for groups
- merged with patch from Vincent Caron

Added uri encoding to the username so that usernames with '@' in them (such as email address/users from LDAP) will
not have to replace the first '@' with %40 in order to clone

fixes #652 switch to generator approach when doing file annotation to prevent huge memory consumption when executed on large files. Thanks to ALexey Larikov for patch.
- added pure dulwich method for getting file history.

Don't cache dulwich Repos, in pararell multithreaded evniroment dulwich pack file openers
can break badly. We need to create Repo() objects always for each call, even when it's
taken from cache.
Fixed issue with dulwich filedescriptor leak ref #573

Implemented file history page for showing detailed changelog for a given file
- fixed git detection of filenode history when executed on directory
- shortlog uses urlify_commit function now

Fixed url escaping issues in history.js
fixed firefox issues with back button

Implemented #661 Add option to include diff in RSS feed
also include RSS item per page and cut_off_limit size in .ini options

Added option to ini files for controlling full cache of VCS instances.
This can increase performance for huge repositories like 300K changesets

Basic implementation of cherry picking changesets
for pull request, ref #575

Fixed issue with inproper handling of diff parsing that could lead to infinit loops.
This was an edge case when diff contained diff data inside. Regresion test was
added

Implemented #658 Changing username in LDAP-Mode should not be allowed.
Those username are autocreated, changing them will end up with new account creation after user logs
in again

Cleaned the way cache keys are invalidated
should fix issue #504 RhodeCode is showing different
versions of README on different summary page loads

added caching layer into RSS/ATOM feeds
- updated code for new LimitedDiffContainers
- invalidate rss/atom cache keys on push
-

fixes #651 Pull request I participate - empty for some cases
fixed wrong if condition

fixed issues some people had with whoosh indexers and unicode decode
errors when building os paths

Multiple changes for compare system
- count number of changed lines and files
- add combined compare button into the old per changeset compare
- fixed some logic for remote & bundle compare system
- added few tests for git compare