Fix build after SASS merge
Do not initialize site.css in site directory

This file served only as documentation and wasn't needed at all.
(And we want to deprecate the site directory anyways)
Since we use SASS, the site-specific css does not apply anymore.
This fixes hhucn/adhocracy.hhu_theme#355
Remove reference to site.css - not needeed with SASS

Related to hhucn/adhocracy.hhu_theme#355
Fix monitor JS (Closes #418)
Make "show more" / "show less" strings translatable
i18n: update all translations
Fix search result input field, button and style (fixes #421)
Only show css for global and current instance badges
pep8
Moved warning message to <body
Merge pull request #424 from carschroeder/warning-message-fix

Moved "lte IE7" warning message to <body>
Do not enable adopt polls by default in new instances
Do not enable norms by default in new instances
Allow to hide norms navigation item

Conflicts:
	src/adhocracy/controllers/instance.py
	src/adhocracy/model/instance.py
Update knockoutjs (2.1.0 -> 2.2.1) and knockout.mapping (2.2.3 -> 2.4.1)
Request adhocracy_ko resource outside of tile (fixes #427)

Tile caching can leed to fanstatic resources not being requested if a
template isn't rendered but taken from the cache.

This happens in the show proposal page, which includes selection tiles,
which need adhocracy_ko, which is missing if the tiles are taken from
the cache.

This commit therefore makes sure the fanstatic resource isn't requested
from within the tile.
Fix changing norms from within proposals (fixes #406)

The behavior of PickleType has been changed in SQLAlchemy 0.7 such that
changes of such attributes aren't detected automatically anymore. This
commit restores the previous behavior.

This needs to be touched again when moving to SQLAlchemy 0.8, as the
mutable flag will then be removed and we have to create a custom data
type for the variants list, which inherits from the `Mutable` mixin.
Added the `RequestLog` Model to the possible exports

Added `gzip`, `tgz (tar.gz)` and `tbz (tar.bz2)` to compression methods for exporting
Added mime-types for the contents to the response.

Changed rendering in an abstraction method `_render_json`,
to implement further render methods for `protobuf` or other similar structured datatypes.
Merge branch 'develop' into export-requestlog
Missed the changes in the template to use new exports.
Merged the changes from the `adhocracy.hhu_theme`.