Fix group combo in staff type editor.

the group combo box accesses the wrong staff templates, as it uses the combo current item index rather than its data.

Also cleaned a potential infinite loop.
fix upload path of travis artifact
Merge pull request #920 from mgavioli/Fix_group_combo_in_staff_type_editor

Fix group combo in staff type editor.
another try for a working vtest upload
another try for a working vtest upload
remove debugging for artifact uploading
update freefonts to vanilla 20120503, remove freefonts from mtest.qrc because they cause a g++ crash(!)
Merge pull request #922 from lasconic/freefontupdate

update free fonts to vanilla 20120503
fix missing build dependency
fix genManual dependency