Fixed Head-Comments.
PSDEZONE-131: [classes] Fixed Datatype-class.
PSDEZONE-134: [classes] Implemented eZTagsTypeBuilder.
PSDEZONE-137: [classes] Implemented xrowMetaDataTypeBuilder.
Moved psdcontentbuildercli.php to folder bin/php.
Fixed Path-String for newly created eZTags.
Added try-catch to psdContentBuilder::apply() in order to get Undo-String even after Exceptions.
Settings in psdcontentbuilder.ini are for reference only.