Update btsync ver. to 1.3.87 (09-Apr-14)
Update wheel logic
Add symlink to Mercurial SPK
Update Syncserver SPK
- Convert to wheel
- Add Mercurial dependency
Update setuptools first to avoid issues with updating pip
Clarify Syncserver description with supported versions
Update roundcube to 1.0.0
Merge pull request #916 from billerr/patch-1

Update btsync to 1.3.87
Merge remote-tracking branch 'upstream/develop' into develop