update default theme
fix cached_func
add rss and _get_recent_articles()
add rss link in template header
refactor import
refactor include footer
update comments for default theme
add length check of comment
move comment check function
add i18n for some words
add url for config
add markdown option
add markdown upload url option
fix bug when edit wiki without content
return url when upload ok
make themes/default as package
update fabfile
update gen_i18n
fix move to root