Settings: RU translation

PS1: translated "status_bar_style_text"
PS2: lockscreen long press actions, camera key unlock,
     ime selector, home button call answer, lockscreen
     battery options.
PS3: new "privacy" section, rephrased privacy guard
     description a bit

Change-Id: I07d09a97ce8e550536a6fad0ef1a358b4cd2293e