[loader] Test group comboBase not leaking into YUI modules
[loader] Set up comboBase correctly
[loader] Add HISTORY entry for comboBase fix

Conflicts:
	src/loader/HISTORY.md

 Author:    Juan Ignacio Dopazo <dopazo.juan@gmail.com>
Loader build files.
Bump package and bower to 3.17.1-rc-1
Bump json files to 3.17.1.
Update HISTORY files with correct version.