added command to clear prompt screen
Merge branch 'master' of https://github.com/irungentoo/ProjectTox-Core
added command functionality to chat windows and a few minor improvements
didn't mean to delete that
already a pull request with this addition
Manally merged #314 and #317
Merge pull request #319 from stqism/master

Manually merged #314 and #317, resolving errors if both merged