data handlers fix
main: optimized data handlers processing
cache memcached added __sleep to correctly process serialization attempts
unit tests fixes for hhvm and cache memcache driver
unit tests disabled caching by default and cache driver set to tmp
cache memcache driver up
cache xcache driver up
unit tests for cache up
cache driver xcache up
unit tests added todo
unit tests for cache up
debug class bugfixes, mostly related to hhvm
unit test for prepare_html up
unit tests moved build xml into bin/
unit tests for cache updated
cache files changed dir prefix into STORAGE_PATH
unit tests smarty turned off for hhvm
unit tests for mixing tpl drivers turned off for hhvm