pull requests: remove redundant status icon from pr title.

- add tooltip to show the status calculation
pull requests: fix issue when close button was inactive even if status
was approved or rejected already.
pull requests: add a 'Changeset status' comment on changeset status

--HG--
extra : source : e666eeeee5be7c6a5ba4bdba9733458cd90610de
pull requests: link to origin branch

--HG--
extra : source : c9cb654c848053bbe3509104d97ce0a76d3a913f
extra : histedit_source : bdbbfe96548b4ebc324c6c3970f7cfb210fe807b%2Ca59f05b02b61a97b566884f3ee3bb39d18a79211
pull requests: make title optional - generate one automatically

--HG--
extra : source : ba4fa8a6c4b02edca9bfd699f36ba7b56ce3b5cf
extra : histedit_source : 9d3f811a86c801d48a4b5906ccdf6d750aef1474
context menu should be changelog when viewing changes

--HG--
extra : histedit_source : 499bb1b9fb72ea0137ee5e2d95f0f852e175e628
2way compare: fixed missing "<" escape code

--HG--
extra : histedit_source : a463e33bf75991a66e3efb2afe953954f0525871
Email: in changeset comments email display the comment first.
It can be confusing if the changeset description is displayed first.
Users expect to read the comment first.
side-by-side diffs: use full power of mergerly whitespace and interactive merge modes

--HG--
extra : amend_source : 1bb95441bf3dbe67008ec11ee6bda569ea89685e
fixed zindex issues on side-by-side diffs

--HG--
extra : amend_source : be4157d68563b4766ebf14d767ce87be0f746bf5
UX: require confirmation of revoking permissions on
repos/user groups/repo groups. We don't want people to
click on this accidentally.
removed unnecessary double-quote symbol.
org author: legal90, pr#120
config: added example uwsgi configuration with auto-scaling
workers mode.
added uwsgi config into mako ini template
added ini files into codecleaner
updated translation file
fixes issue #860.

IMC web commits poisoned caches when they failed. We now
always invalidate caches so objects are refreshed and will be accessible.
Use META_TO_EXT in separate file and import it only in gists template
fixes issue #856 file upload >1000 bytes on windows throws exception.

The returned object is a true file object on POSIX platforms.
On other platforms, it is a file-like object whose `file` attribute is the
underlying true file object. We check if such object has a file attribute
which is missing on POSIX platform
Added two headers into example nginx proxy conf that allows container auth
to work properly