Bump MODULE_VERSION to 5.3.1

Change-Id: Ic12bff4a564117f7e566e8880ed66046be5ea07d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Merge remote-tracking branch 'origin/5.3' into dev

Conflicts:
	.qmake.conf

Change-Id: Id4d3d030c5cb609a4b7ad03c5496a9a5625d46c5
Bump version

Change-Id: I25a398434f4fcc0ee50cc698d65a40ebd7e2f196
Merge remote-tracking branch 'origin/5.3' into dev

Conflicts:
	.qmake.conf

Change-Id: I8150980a590b864feb41d90ba09bbcbac8da8225
Doc: Removing url variable from qdocconf file.

-url inherited from the url variable set in qtbase/doc/global

Change-Id: I8f79cadaa601ab1644a0f36cdfef7b271f39f65c
Reviewed-by: Martin Smith <martin.smith@digia.com>