prepare library for exception handling in android implementation
implemented automatic exception conversion for JNI
- refactored exception handling in android application
- removed testing exception from wifly control
- reduce cpu load of simulator if maximum performance is not required
Merge branch 'fix_android' into dev
implement "toggle" for wlan passphrase textedit
Merge branch 'fix_android' into dev

fixed issue #92 Android: toggle visibility of passphrase
cleanup layout of device selection view
removed button from SetColorFun fragment
Merge pull request #121 from tawarisch/master

Implement exception handling in android app