Merge branch 'master' of https://github.com/AHeise/sopremo-cleansing

Conflicts:
	src/main/java/eu/stratosphere/sopremo/cleansing/mapping/EntityMapping.java
	src/main/java/eu/stratosphere/sopremo/cleansing/mapping/SpicyMappingTransformation.java
Merge branch 'master' of https://github.com/fatschi/sopremo-cleansing
Merge pull request #12 from fatschi/master

some cleansing changes
Merge pull request #13 from fatschi/master

added special expressions to entity mapping (array access, object creation, elvis operator, etc.)
Merge branch 'master' of https://github.com/fatschi/sopremo-cleansing
Merge branch 'master' of https://github.com/AHeise/sopremo-cleansing
Merge branch 'master' of https://github.com/fatschi/sopremo-cleansing
Merge branch 'master' of https://github.com/AHeise/sopremo-cleansing
Merge branch 'master' of https://github.com/Tommy-Neubert/sopremo-cleansing
added support for constant expressions
changed take all semantics from [.bar] to all(.bar) and implemented support for ArrayCreation instead