add by_language scope to projects and users
resolve conflict
expose /language/:language and display information
resolve conflict in pull request spec
add pagination for projects on language page
add /language/:language/projects
add /language/:language/users
pull requests for a language
use helper to retrieve user count
only show PRs for current year
reuse pull_requests/index to render language prs
Merge pull request #305 from despo/add-language-page

Add language page
Tweaked the wording of some language titles
Downcase links to language pages
Only show sections on the language page if they have data
Fixed language label color
trailing whitespace
Update snow animation
Removed trailing spaces in 2 specs
Merge pull request #307 from jasnow/master

Removed trailing white space in 2 specs