Create uploads dir otherwise backup fails. Fix #4304
contributing guideline updates

* updated close policy
* added line on courtesy & respect to volunteers
* request that issue information be placed in first issue post
Added delete button to snippet view
Added tooltip to snippet public/private icons
Don't show 'Filter by labels' text if there are no labels
Don't show project search form if there are no projects
Merge remote-tracking branch 'upstream/master'
fixed nav bar for empty repos (fixes #4375)
Merge pull request #4323 from axilleas/update_docs

Create uploads dir otherwise backup fails. Fix #4304
Adding detailed documentation of the markdown syntax.

This includes standard markdown as well as GitLab extended markdown as well as references to documents used.
fixed typo in assgned
Merge branch 'muskox-master'

Closes #4424
Merge branch 'master' of git://github.com/bbodenmiller/gitlabhq into bbodenmiller-master
Tweak wording and phrasing
Merge branch 'bbodenmiller-master'

Closes #4331
Doc: set permission on config.database.yml
Fixed db/schema.rb
Merge pull request #4460 from tstone2077/feature_help_markdown

Adding detailed documentation of the markdown syntax.
Merge pull request #4442 from 1ed/projects-helper-fix

fixed nav bar for empty repos (fixes #4375)
Merge pull request #4415 from jackbot/master

Couple of UI additions
Merge remote-tracking branch 'upstream/master'