drop epicEditor and Showdown; just use marked
drop tests of showdown
add submit button back
replace blue with gray; limit navbar width; smaller fonts around title

11px for small fonts
remove reply order; use reply icon
markup @user in reply
Merge pull request #308 from jiyinyiyong/change-blue-link

Change blue link, add reply icon
remove username at edit-by
Merge pull request #309 from jiyinyiyong/edit-by

remove username at edit-by
放弃对于 0.8 的支持
merge new editor
Add wiki
add wiki
style the editor and previewer
move preview button ahead; focus caret after text
escape html tags in code
Merge pull request #314 from jiyinyiyong/styles-of-editor

Styles and layout of editor
add methods and page to edit comments
fix navbar width
Merge pull request #315 from jiyinyiyong/comments-editable

Add methods and page to edit comments