added mod function
added modulo function test
refactoring
set extern token string
added new style to stretch edit texts
refactored if begin brick xml
fixed #247
reset uservariable container
Merge branch 'master' into addModuloFunction
removed newline
changed brick styles accordingly
Merge branch 'master' into ifBrickNotConsistent
added if brick default value to tests
Merge pull request #355 from Catrobat/addModuloFunction

Add modulo function
Merge pull request #356 from Catrobat/ifBrickNotConsistent

If brick not consistent
Merge remote-tracking branch 'upstream/master'