checkbox, sort by attributes, etc
 checkbox, sort by attributes, etc
MD5 check
fixed sorting bugs
prep for zip download
minor fixes
minor fixes
added file preview v1
search
preview
Merge branch 'dev' of github.com:RubyNewbies/DocBox into dev
PDF preview; I18n fix
type filter
applied bootstrap
applied bootstrap
improved UI
improved UI
pre-merge
image preview bug fixed
image preview bug fixed