Fixes a crash/memory read error with the tests/array_map-php55.phpt test.

Would only really show up with USE_ZEND_ALLOC=0 and valgrind.
Merged pull request #124
Merge branch 'xdebug_2_2'
Refactor tracing in preparation for another uber cool tracing handler.
Misc test case fixes and memory issues.

Already part of Xdebug proper too, but needed it in here to be able to proceed.
ZTS issues and test fixes
Merge branch 'triceratops-refactor'
Updated bundled xdebug.ini file with new settings.
Fixed issue #1057: Removed trailing whitespace.