Bump MODULE_VERSION to 5.2.1

Change-Id: Ia63c89e456f240d5a17be551af815d42cbb42aeb
Reviewed-by: Matti Paaso <matti.paaso@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Merge remote-tracking branch 'origin/release' into stable

Change-Id: I3e500fcdf0bf7a04bdd753ceae5626ab8a443e17
Remove stray curly bracket in QAndroidJniObject's documentation.

The bracket was misplaced in a very unfortunate place.

Change-Id: Id2f0f96cc49689cb6c656757ddae6690ff1da0d2
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
Fix non-compiling doc snippets.

Change-Id: I0e5160f18f89ed25882741d93410ea1860ed659a
Reviewed-by: Christian Stromme <christian.stromme@digia.com>
Doc: Updated the qdocconf to include .java files

QDoc ignores the .java files without the following entry in the
qdocconf:
examples.fileextensions += *.java

Java files are not part of the default set of file types included
by Qdoc. So there must be an entry in the qdocconf to force Qdoc
to include additional file types such as the .java files.

Task-number: QTBUG-35568
Change-Id: Ic8b805e0dec937fb0e8b19f0b94883ced5eb6c04
Reviewed-by: Christian Stromme <christian.stromme@digia.com>
Reviewed-by: Nico Vertriest <nico.vertriest@digia.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>