Accelbubble example only really works with a locked UI to portrait

On Android we have to do that via a custom AndroidManifest.

Change-Id: If436bdd494b3d167121bd8ee80f81c031a81f5d5
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
add PLUGIN_CLASS_NAME declarations to plugin projects

needed for automatic static linking (and later deployment).
the gesture plugins are excluded from the automation based on the
assumption that they are usually not needed.
the example and the test plugin are also excluded for obvious reasons.

Change-Id: I7645aa0daf216ce430989e13d4380dbe6dd2bbd1
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
Android, Fix generic access to QAccelerometer

Generic access to QAccelerometer through QSensor was broken by my
previous change: 971fc95eca1d9db93aa4bdb75793dfe83e4a97db
When using a QSensor* to access the accelerometer, the qobject_cast
would fail, and return 0. I fix this by defaulting the accelerationMode
to Combined when a QSensor* is used.

Change-Id: If8389808a416807b72709a13ca315aa23bbf94a0
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Lorn Potter <lorn.potter@jollamobile.com>