Merge pull request #18 from itcc-li/develop

Develop
Remove compiler warnings
Code cleanup, improve back button
ignore .metadata
Rename package Selfie to selfie
Rename resources
Add first version of direction fragment
Direction fragment works now as compass
Erste version direction
Insert intro fragments
Refinement
Merge pull request #57 from Arthur26/develop

Stabilisiertung
Stabilize selfie
Merge pull request #58 from Arthur26/develop

Stabilize selfie
25Meter -> 25 Meter
Merge pull request #59 from Arthur26/develop

25Meter -> 25 Meter
Merge pull request #15 from itcc-li/develop

Arthurs stabilisation