timesince translation (zh-cn)
improve discuss translation (zh-cn)
Merge pull request #27 from dotkrnl/i18n

timesince translation (zh-cn)
fallback no translation to en-us
discuss error translation (en-us and zh-cn)
help page translation (zh-cn)
Merge pull request #28 from dotkrnl/i18n

i18n fallback and more discuss translation
add basic handle for images