add EDB-35217 tests

Change-Id: Id37702123bd81a7102d101d3348dcf923c20a5d8
add CVE-2014-6352 testcase

Change-Id: I4f1ad13f73737a2c88d5b911f9df858a3427eac2
valgrind: check return of convertDateTime before using fDate

lots of spew in VALGRIND=memcheck make CppunitTest_writerperfect_calc

Change-Id: I8b95e95218beefe19e881c9d055323d0abec49c7