Updated French translation

HW Key actions: Show info about overriding system defaults for navbar
Merge pull request #16 from romashko/jellybean

Updated Russian translation
Merge pull request #18 from ch-vox/patch-4

Updated French translation
Update strings.xml
Merge pull request #20 from Eric850130/patch-23

Updated Chinese (Traditional) translation
Updated Spanish translations (thanks to jvbferrer)
Update strings.xml
Merge pull request #21 from liveasx/patch-25

Updated Chinese (Simplified) translation
TorchService improvements
- implemented partial wakelock which allows torch to be on when screen
is off on some devices
- better handling of start command
- finish explicitly when torch set to off
Fixed errors in Spanish translations...
Update strings.xml
Merge pull request #25 from liveasx/patch-27

Update strings.xml
Handle 'Disable data network type icons' pref change via broadcast
- the goal is to avoid reading the whole preference XML everytime that getDataNetworkTypeIconGemini is called
Update signal cluster view spacer on-the-fly
- spacer is now updated not only once layout is inflated,
but everytime data network type icons are disabled/enabled
Updated Portuguese (PT) translation
Lockscreen torch
Allows torch either on home long-press or volume down long-press while
on lockscreen and music is not playing

Cherry-picked and backported from KitKat branch
Updated Portuguese (PT) translation
'Toggle torch on home key long-press' removed
- deprecated after commit 657ef02386540c954db72c5e1e6b36a69ceddf44
Move isAppInstalled method to Utils
Threat MT6582 the same way as MT6572