ENH: support old cmake for dashboards

CTestConfig.cmake

@@ -5,3 +5,8 @@ set(CTEST_DROP_METHOD "http")
 set(CTEST_DROP_SITE "www.cdash.org")
 set(CTEST_DROP_LOCATION "/CDash/submit.php?project=CMake")
 set(CTEST_DROP_SITE_CDASH TRUE)
+
+# use old trigger stuff so that cmake 2.4 and below will not 
+# get errors on trigger
+SET (TRIGGER_SITE 
+  "http://public.kitware.com/cgi-bin/Submit-CMake-TestingResults.cgi")