Änderungen

Summary

1. fixed #557 handling null in conditional expression (commit: c018562) (details)

Commit c018562f26da19168b4a8c474a15d7d3ed965d54 by peter.peq fixed #557 handling null in conditional expression (commit: c018562)
	de.peeeq.wurstscript/src/test/java/tests/wurstscript/tests/ExpressionTests.java (diff)
	de.peeeq.wurstscript/src/main/java/de/peeeq/wurstscript/attributes/AttrExprType.java (diff)
	de.peeeq.wurstscript/src/main/java/de/peeeq/wurstscript/validation/WurstValidator.java (diff)
	de.peeeq.wurstscript/src/main/java/de/peeeq/wurstscript/attributes/AttrExprExpectedType.java (diff)