Translations: Add Bengali and Hindi

Change-Id: I8b0bbf7bb0510b2430b2ef0f1d52d59dfdf74ea9
Reviewed-by: Venugopal Shivashankar <venugopal.shivashankar@digia.com>
Reviewed-by: Indrajit Tapadar <indrajit.tapadar@digia.com>
Reviewed-by: Caroline Chao <caroline.chao@digia.com>
Translation: Add Simplified Chinese

Since Traditional Chinese is not available,
adding Simplified Chinese as default language for
one or the other detected (zh).

Change-Id: I0262ee8054450babbc90b4eaeed0b4c6364fddb5
Reviewed-by: Jing Bai <doris.bai@gmail.com>