further refactoring of EntityMapping
Merge branch 'master' of https://github.com/AHeise/sopremo-cleansing
started implementing function handling for entity mapping
fixed tests
fixed wrong test result in IT
first running implementation of functions in mapping
added forgotten IT input file
Merge branch 'master' of https://github.com/AHeise/sopremo-cleansing
first refcatoring of SpicyMappingTransformation.java
fixed shouldPerformExampleMappingGenerated
fixed shouldPerformExampleMappingGeneratedWithSKFunction
refactored SpicyMappingTransformation to use position encoded arrays for input/output streams instead of object nesting (v[0-9*])
adapted function calls to also use position encoded array
fixed all tests in mapping
changed syntax of entity operator and fixed tests accordingly
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
added failing MappingIT4 using switched outputs syntax
added failing it for wrong grouping behaviour in entity mapping
refactored Entity Mapping: InputIndices are now used instead of Strings magic
fixed grouping behaviour in mappings (seed EntityMappingIT5)