update of licensetexts

2010-2012 -> 2010-2013
added missing xml-version
new assert when bt-connection failed
Merge pull request #128 from Catrobat/LicenseUpdate2013

Update of Licensetexts
updated bluecove-libs to 2.1.1 nightly builds
Merge branch 'master' of ssh://git@github.com/Catrobat/Catroid.git
Merge branch 'master' into issue#54