Send version number with device info
Merge pull request #26 from TeamWhat/version

Send version number with device info
Add an about screen
Merge pull request #25 from TeamWhat/about

About screen
Add email to preferences and remove useless test
Merge pull request #24 from TeamWhat/email

Add email to preferences and remove useless test
Deleted most demo activities and classes
Removed unnecessary tests and fixed mock cursor error in MediaDataCollectorTest
Added working collectAndSendData button to mainscreen