Änderungen

must declare globals and constants before using them

just a warning for now to not annoy people too much, but will be error
in future versions.

Problem is, that init order may lead to strange results if people do not
do this.

See https://github.com/wurstscript/WurstStdlib2/issues/13 and
https://github.com/wurstscript/WurstScript/issues/574
 (commit: 03fa65a)