Merge pull request #6 from dotkrnl/oimode

add pass_rate display for OI mode
set base url working
move some method from OJ to e
Merge branch 'master' into last
fix a typo
fix typo
use URL instead my functions
fix router and redirect both will add base_url in relative url
Merge branch 'master' into last
ignore .htaccess file
Merge branch 'master' into last