fixed issue #559 fixed bug in routing that mapped repo names with <name>_<num> in name as
if it was a request to url by repository ID

Permissions on group can be set in recursive mode setting defined permission to all children
- more explicit permissions
- fixes for empty values in permission form

Fixing issues of cache invalidation for multiple instances running in rhodecode.
- during server start always register all cache keys for all repositories
- Don't clear cache markers on start since multiple instances can clear each other out

Fixed status of changesets in preview windows
- show what status was pull-requests closed with
- added alternative logic for showing that status (disabled for now)

fixes #550 mercurial repositories comparision failed when origin repo had
additional not-common changesets + added regresion test for this

Remove null from revision column as for comments inside pull requests to work properly
new migration adds column for future simpler main page

Added huge diff protection for RSS/ATOM feeds.
It can really be a performance killer for huge diffs.

migrations: fix old hook values
- nicer notifications

More fixes to upgrade procedure,
- fix missing section on hook
- fixed missing inherit_default_permission column

Step6a for migrations from 1.3.6
to 1.4.0

new dulwich based implementation of added/modified/removed
functions for GIT changeset. Much faster some test up to 70% speed
improvements. Pure awesomeness !

re implemented affected_files function for git using dulwich
it speeds up things like 70%

added new suite of tests for VCS operations
- locking tests
- push pull tests
- added new ENV option to bypass re-creation of test enviroment

fixes issue #543, un-broken alternative gravatar option
- also now formatting is similar as other parts `{}`

changed the tests for search.
for >1 page we cannot guarantee the order, thus we cannot
check for particular revision.

sync alternative gravatar options to other .ini files
- changelog update