Phone : refactor translations

Patch set 2 : original USSD strings

CS, DA, DE, FR, NL & RU are in progress

Change-Id: I12f4d4373d71f569ebdbafa5e4c7664b58829f59
Merge "Phone : refactor translations" into cm-10.1
Phone: Update italian translation

Change-Id: I2a8d3c11a2b7c037564ddc89a2a5ab152077cf19
Merge branch 'cm-10.1' into martincz