Merge branch 'release/2.4.17' into develop
bump snapshot
new sablecc version
Merge branch 'hotfix/sablecc' into develop
use assertEquals instead of assertTrue(equals) in unicode test cases
fix bug in unicode translator grammar: read single characters instead of a sequence of characters
add NAT1 and POW1 to grammar and unicode translation
add non_identifier_characters (like &) to unicode prefix matching
fix / add test cases
add take/drop to grammar, simplified grammar (merged non_identifier_chars and whitespaces again)
removed old todos, re-enabled and fixed all ignored test cases
version for release
Merge branch 'release/2.4.18'