FIX: CLO-3856 - CTL2: StringLib.isNumber() fixed to reject "-".

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-3-5@16227 a09ad3ba-1a0f-0410-b1b9-c67202f10d70
UPDATE: CLO-3856 - CTL2: CompilerTestCase.test_stringlib_isFormat() enhanced.

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-3-5@16228 a09ad3ba-1a0f-0410-b1b9-c67202f10d70