Jira - Fixed Jira Issue tracker support

update pull request guidelines, allow for submitting of tests that expos...

Jira issues numbering format are like: "PROJECT-1234".
Changed the regular expression to support Jira issues linking, in addition to the normal #123.

Added Jira Issue tracker configuration example

add code comment about backing up folder when restoring

Use default cursor on network graph.

Merge branch 'add-defaults-create-group-team' of https://github.com/dmedvinsky/gitlabhq into dmedvinsky-add-defaults-create-group-team

Conflicts:
	config/gitlab.yml.example

Fix link 404.

Merge branch 'feature_teams_api' of https://github.com/former03/gitlabhq into former03-feature_teams_api

Conflicts:
	doc/api/README.md

Fix regression caused by using newer version of Grape

improved issue reporting guidelines

Include groups in import with import repos rake task

remove branch dependencies in README where not necessary

clarify when issue tracker is to be used so as to not contradict issue t...

add stack overflow to help page

details on looking for correct installation guide

added stack overflow as support option

clarify when issue tracker is to be used so as to not contradict issue tracker guidelines and maintenance policy