Merge branch 'master' of github.com:agapered/burrow

Conflicts:
	README.rdoc
Updated gitignore.
fixed merge problems
added route tests for repositories
added tests for repositories controller
added view tests for repositories
fixed repository routing to be more consise
renamed hash on commits to sha
added base tests for commits
updated gitignore
removed url validation on repositories
removed test for valid url
Walker and importer background jobs.
Merge branch 'master' of github.com:agapered/burrow
The workers are... working.
Updated readme with worker commands.
refactored workers and added tests
updated worker tests and code so all commits are pulled rather than last 30.
added displaying difffs to commits
added resque scheduler