Simplifies some of the "active tab" checks we're doing

Uses TeamMembers#index instead, to be more RESTful

Merge branch 'master' into non-interactive-aws-install

Conflicts:
	doc/installation.md

Fix merge mess in installation.md

Closes #1237

Signed-off-by: NMartin Bastien <martin.bastien@studiofrenetic.com>

Didn't bother with files in db/, config/, or features/

to content sections in wiki

* dashboard should be in dashboard controller not project index
* projects index removed

* Grit gem updated
* gitolite-client updated
* logger added
* few fixes

Since some conversion tools do commits with an empty commiters email
address gitlab will fail with a 500 error

This gives us Github Flavored Markdown, which is awesome.