added `AndroidLib` project skeleton.
moved common resources to the `AndroidLib` project.
Added eclipse project files for the `AndroidLib` project.
Merge branch 'master' of https://github.com/DroidPlanner/droidplanner into feature_android_lib
Merge branch 'master' of https://github.com/DroidPlanner/droidplanner into feature_android_lib
improved Google map implementation.
updated the `NotificationProvider` interface.
Merge branch 'master' of https://github.com/DroidPlanner/droidplanner into feature_android_lib
updated `NotificationHandler` to take advantage of the updated `NotificationProvider` interface.
Merge branch 'master' of https://github.com/DroidPlanner/droidplanner into feature_android_lib
`NotificationHandler` javadoc update.
updated the usb connection implementation to provide a fallback if the ftdi library fails.
added logging to investigate the ftdi library failures.
Mavlink: Update Mavlink library
added debug and GA logging to monitor the used usb type.
Merge pull request #1042 from ne0fhyk/feature_improve_usb_connection

Feature improve usb connection
add german strings for tts warning preferences
Merge pull request #1045 from squilter/issue_1034_more_german

add german strings for tts warning preferences
Merge pull request #1038 from arthurbenemann/mavlink_update

Update Mavlink library
fixed issue #1043