Move langauge detection to separate module to be more reusable
Add option to disable vendored file exclusion from file search
Allways show all language stats for search
* add global code search on explore
* fix bug when no anyone public repos
* change the icon
* fix typo and add UnitTypeCode check for login non-admin user
* fix ui description when no match
Lauris BH
Lunny Xiao
Morgan Bazalgette
Ethan Koenig