DSPManager: Update German & English translation

Patch Set 1-3:	* rename some strings
		* rename a arrays
		* some more cleanup

Patch Set 4-6:	* rename strings after comments
		* remove capitals in English translation

Patch Set 7:	* rename strings after comments

Patch set 8:    * minor wording fixes

Change-Id: I9a676bae2e740b170e794886390fd049f4b0d9d9