Add regression test for MALIIT#188
Add regression test for MALIIT#188

RevBy: Krzesimir Nowak
Using our server-tests.conf, we check what happens with our default
configuration when no user configuration exists. Had to add some API to the
QSettings backend factory to allow for different organization and application
names. Togehter with the other three basic test cases for active and enabled
subview handling, this makes a good enough regression test for MALIIT#188.

Full, original commit at 2e637e182ea4d3406836b4bbf0f56082f8216f81 in maliit-framework

maliit/inputcontext-gtk,maliit/inputcontext-gtk