Allow public repo searching

GITLAB-1386

Change-Id: I9a0bbe8db1a9bb00cef33b3e1854d78844b70a45
Updated convience method to private
Fix #5313 hipchat 0.14.0 to use http_proxy
Add import_url param in API projects create
[API] add parent_ids to specific commit informations
Fix HTTP push to public repos

When doing an HTTP push, git (as of v1.7.9) first do an info/refs
request, and only if this request requires authentication it asks the
user for its password and authenticates further requests.

The initial request normally clears without auth on public repos as it
doesn't update any ref. This patch forces every git-receive-pack
requests to provide authentication.
Fix issue update js
Postgres Client Needed for Ubuntu 13.04

It looks like the postgresql-9.1 package didn't include the actual client. Needed to install it separately to get this to work.
Add import_url in API docs
 Added support for Go's repository retrieval.

 - Simply adds the releavant meta link in the project's show action.
 - Information about this meta tag can be found here:
   http://golang.org/cmd/go/#hdr-Remote_import_paths
Use project methods instead of attributes.

- This should work correctly in all cases now.
- Added a new project method that returns the web url for a project without
  the scheme prefix.
Use web_url for web_url_without_scheme.

- Previus version was still incorrect as it ignored cases where GitLab would
  be installed in a custom location.
- This assumes that if this method can be calle, web_url will return a valid
  URL.
Change the Label for SHA1-Seach inside the Network
Improve project show page for ipad

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Show search icon for 768px width

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
twbs3 fixes for UI

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
increate some input width. Added navbar toggle button

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Add .bs-callout styles

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Style accept widgets for MR

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Simplify upgrade guide based on 6-4 functionality mentioned by Jacob.