Throttle trim must be center throttle

Android done.

UI Tweaks for all mobile platforms.

* PX4: Deal properly with optional components

* RC map UI: Offer better defaults and user guidance

Added setting to set the WiFi mode (AP or Station)

Add support for localization in the QML's on the Common folder.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

Uploaded new .svg icons referring to Airframe Configuration screen.
Deleted .png files.

Signed-off-by: Carlos Felipe <carlos.felipe@intel.com>

Since parameter system will pop message based on meta data