Correct issues introduced with the latest label updates

[DavidFichtmueller]

in ba51ba8 a lot of issues were introduced when splitting and casing the labels

• Abbreviations/initializations need to be call uppercase: Utm, Url, Id, Mime, Sha 2 (here the space also needs to be removed: SHA2), Wsg 84 (here the space also needs to be removed: WSG84),
• on labels ending with a number, the label tag was removed: <rdfs:label xml:lang="en">Series 2</rdfs:label> became Series 2 (line 3609 ff)
• the same for time zones with a numerical offset (off of them are currently in comments but still this is an issue if they should ever become part of the ontology again ): <!-- <rdfs:label xml:lang="en">Etc/GMT+0</rdfs:label> --> became Etc/GMT+0
• the same for Northern and Southern Hemisphere abbreviations: <rdfs:label xml:lang="en">N</rdfs:label> became N and <rdfs:label xml:lang="en">S</rdfs:label> became S
• also the same for taxon rank abbreviations: <rdfs:label xml:lang="en">subgen.</rdfs:label> became Subgen., however taxon rank abbreviations are supposed to be lower case anyway
• unicode code point references became invalid when changing the capitalization: é became é and ç became ç
• all of the file extensions should either be call upper or all lower case but not regular capitalized: MP3 or mp3 instead of Mp3

Those are all the ones I caught by quickly scanning over the diff. There could be more in there that I missed.