Release 1.5.5b
Minor bugfix release
talismane_core/TalismaneConfig: throw exception if unknown builtInTemplate
talismane_lefff/LefffMemoryBaseImpl: allow null complements
talismane_machine_learing/AbstractFeatureParser: changed to find StringCollectionFeatures after parsing, to avoid creating multiple string collection features for all features when parseFeatureInternal returns multiple features
talismane_machine_learing/Feature: added addArgument and getArguments, to enable recursive searching into a feature's argument tree