TYPOC-53: added a disable checkbox for the contexts
TYPOC-53: added tests for the match method of the combination type
TYPOC-53: fixed the check for an existing dependend context
TYPOC-53: use disabled as disabled-field
TYPOC-53: CS
TYPOC-53:
- added the parameter $arContexts to Tx_Contexts_Context_Abstract::getDependencies()
- removed the unittest Tx_Contexts_Context_Type_LogicalExpressionEvaluatorTest::testRunWithExceptionUnknownVariable
- added the getConfValueCallback to IpTest.php