Changed Message boxes from 'Render' to 'Submit'
Changed default hooks

work_file to submit_file
setting nuke hook frames to integer types
Feature to hide attributes from user

Can pass attribute from pre-hook to submit-hook without showing the
user.
Attributes from pre-hook needs added 'gui' entry to work!
Clean up

removed some copy rights notes
removed redundant results ui file
changed tk_multi_renderfarm folder name to app in python folder
Merge remote-tracking branch 'upstream/master'

Conflicts:
	hooks/pre_submit_tk-maya.py
	hooks/pre_submit_tk-nuke.py
	python/app/dialog.py
Fix key name