Add various Status hash lists for OJ module
Add various Language hash lists for OJ module
Merge pull request #3 from AlphardWang/development

add modal for problem page
Add quick edit for show submission page
Use monospace for textarea
Change textarea font-family to $monoFontFamily
Add link to submission detail at id on submission index
Remove unnecessary routes
Add Rankings page
Fix bug: cannot show finished on pages other than page 1 in rankings
Add a todo
Change "User" to "Handle" in some pages
Store toggle_finished in session[:rankings][:toggle_finished] instead of session[:rankings]
add submission ability for simple user