Tags beginning with a non alpha-numeric character are now disallowed.

Added !throws special tag which denotes a test case to be skipped when run with -e
(the idea being that the test case is expected to throw an exception which is not caught within a XXX_THROWS assertion).

projects/SelfTest/MiscTests.cpp

@@ -333,3 +333,9 @@ TEST_CASE("A couple of nested sections followed by a failure", "[failing][.]")
 
     FAIL("to infinity and beyond");
 }
+
+TEST_CASE("not allowed", "[!throws]")
+{
+    // This test case should not be included if you run with -e on the command line
+    SUCCEED();
+}