Introduce concept of order dependencies
extended testcase for ConditionalUniqueColumnCombination toString()
implemented pattern tableau
added \r  for line ending and update expected string in testcase
Merge branch 'SubsetGraph' into pattern_tableau
using pattern tableaus for result
#87 Tidy up DefaultFileInputGenerator constructor.
#87 Tidy up FileIterator constructor.
Merge branch 'master' into FileIterator_FileInputGenerator
Introduce order dependencies to the frontend
Merge remote-tracking branch 'upstream/master'
Issue#243: implemented getters for table- and columnIdentifiers
Merge branch 'master' into FileIterator_FileInputGenerator
Merge remote-tracking branch 'upstream/master'
Add tests for ColumnPermutation and OrderDependency
Change backend tests to include order dependency classes
Add example algorithm for order dependencies
small toString() change
added copy() method to PositionListIndex
Merge branch 'master' into PositionListIndex