Merge pull request #24 from AndreasSchacherbauerWikitude/Integration_4_0_2

Integration 4 0 2
New icons in Android sample app
CSS fix for known issue on SnapToScreen sample
Synchronized samples with SDK sample application
Synchronized samples with SDK sample application - deleted files we no longer need
Merge pull request #25 from bigmouth/Integration_4_0_2

New icons in Android sample app