EDIT

implement RankClass, remove iso639_2, add max values to distance attributes, change type for distances,

make term loader required constructor protected and exchange modifier classes by DefinedTerm

exchange modifier classes by DefinedTerm, add termtype to csv files, make term loader required constructor private

add UTF8 enum and use it in DerivedUnitFacade

remove TdwgArea and add termType and idInVocabulary (#2998, #3478, #3479, #3539)

minor renaming

added TermType enum

update updated script and some other changes

changes for absoluteElevation #2663, treeIndex (TaxonNode) #2947 and source type #1549

fix bugs and adapt tests for original source type