Support a number of useful media keys in kmap2qmap

Change-Id: Iacc2e3c8d4fa5e638da6f01e224aaefe42ff700c
Done-with: Andrew den Exter <andrew.den.exter@jollamobile.com>
Done-with: Vesa Halttunen <vesa.halttunen@jollamobile.com>
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
androiddeployqt: Add OpenGL dependency to manifest if necessary

In order to filter out devices that do not support OpenGLES 2 in
Google Play, we need to report that we depend on it when using
Qt Quick or Qt OpenGL. It would have been more generic to add the
information to the meta-data in the module, but since we already
have the information there, just in the form of forcing the
use of the GL plugin, we might as well use that and not complicate
the dependency XMLs any further.

Task-number: QTBUG-32491
Change-Id: I2af044be010fcd0a8076906de6385701041b9c01
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
Improve error messages when qhp files are messed up

Hopefully this saves me and everyone time when mixing up project names
resulting in empty namespaces in .qhp projects.

Change-Id: Ib4151225011c866219504c1fdbaadd17d387500a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Remove unused variable.

Change-Id: I96ed669e25e0ba1123dc313729e666df172bc3c7
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>