Fixed AboutDialog layout.
Merge pull request #227 from Catrobat/SensorOrientation

Sensor orientation fix
Fixed test for AboutDialog.
Merge pull request #228 from Tsukanov/about_dialog_fix

Fixed AboutDialog
Inversion of x_orienation, x_orientation renamed to x_inclination, y_orienation renamed to y_inclination, z_orientation renamed to compass_direction, german translations added for new sensor names, Changed assertion-error-explanations in SensorTest.java, Replaced old sensor-names(azimuth, pitch, roll) with current names
Merge branch 'master' into SensorOrientation