Imported some of the GPLv3'd changes from RhodeCode v2.2.5.

This imports changes between changesets 21af6c4eab3d and 6177597791c2 in
RhodeCode's original repository, including only changes to Python files and HTML.

RhodeCode clearly licensed its changes to these files under GPLv3
in their /LICENSE file, which states the following:
The Python code and integrated HTML are licensed under the GPLv3 license.

(See:
https://code.rhodecode.com/rhodecode/files/v2.2.5/LICENSE
or
http://web.archive.org/web/20140512193334/https://code.rhodecode.com/rhodecode/files/f3b123159901f15426d18e3dc395e8369f70ebe0/LICENSE
for an online copy of that LICENSE file)

Conservancy reviewed these changes and confirmed that they can be licensed as
a whole to the Kallithea project under GPLv3-only.

While some of the contents committed herein are clearly licensed
GPLv3-or-later, on the whole we must assume the are GPLv3-only, since the
statement above from RhodeCode indicates that they intend GPLv3-only as their
license, per GPLv3§14 and other relevant sections of GPLv3.

improved title consistency
- changed - into dots to save space

Fixing missing icons.
Removing the breadcrumb from the box header, so it will only be on the context bar.

Adding the context bar too all pages related to a Repository.
Deleted top menu items that are on the context bar already.

implements #636, lazy loading of history and authors to speed up page responsiveness.
- loading full history is not always needed, and it's very heavy operation. Now this is lazy loaded
when clicking on button

Fixed issue when node didn't exists at 'tip' and we tried calculate history based on that assumption.
Now fallback to the changeset the node exists in for history calculation

fixed issues with non-ascii chars in new file browser
- patches history.js to handle non-ascii urls properly
- wrap c.file.path into unicode for mako

Disable the html4 history mock for old browsers.
Enable search filter on initial page load

Reimplemented file-browser using partial-ajax
- improves the speed of browsing of files for revision
- url push state via html5 History
- also cache the results of calls for even faster handling the content

removed JSON array envelope from filter files function
- switched to translation map for labels in file filter

commit less models
- models don't do any commits(with few exceptions)
- all db transactions should be handled by higher level modules like controllers, celery tasks

new files views
- compated space
- nicer gui
- code garden

added reply comment button on top of inline comments
fixed some issues with interactive file filter on files

cleaned up JS files in files templates.
- fixed some small issues with editing/adding git files using codemirror
- small css fixes
- separated files/dir browsing into separate template

some changes for #45.
Added warning messages for browsing wrong cs/paths
Cleanup of codes

Fixes for raw_id, needed for git
Renamed hg controller to home
css html changes