enable responsive layout on mobile
use width:100% + max-width instead of hard width
show details with runid
remove jQuery UI & TinyMCE from front end
Merge pull request #18 from dotkrnl/layout

improved layout for mobile
fix contest edit bug for `base_url`
refactor the code with prepare statment
remove unused file
rearrange the error message
add source view from problem summary
Merge pull request #19 from dotkrnl/bug

fix contest edit bug for `base_url`
set problem id colour instead of the check symbol
replace the style, and add important anti the table style
fix nav-pills center in problem show
remove reset button on submit page
Merge pull request #20 from dotkrnl/layout

fix nav-pills center in problem show
fix contest header centering
fix layout of submit page
Merge pull request #21 from dotkrnl/layout

fix layout for contest and submit page