#157 #212 Check number of settings in ConfigurationRequirement and throw an exception instead of returning boolean.
#157 #212 Update comments.
Merge branch 'master' into ConfigurationRequirement
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
Merge branch 'master' into ConfigurationRequirement

Conflicts:
	backend/src/main/java/de/metanome/backend/configuration/ConfigurationValueFileInputGenerator.java
#87 Tidy up DefaultFileInputGenerator constructor.
#87 Tidy up FileIterator constructor.
Merge branch 'master' into ConfigurationRequirement
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
Update docs in ConfigurationRequirement.
Merge branch 'master' into ConfigurationRequirement
Merge branch 'master' into FileIterator_FileInputGenerator