tests: print *.actual disabled by default
travis: run tests also with PHP 5.5
Travis configuration: fixed memcache install (already installed) & removed obsolete memcache update
Revert "renamed 'vendor' to 'tools'"

I hate this word, but it become a standard :-/

This reverts commit 65d4f851b7f33e5fd8f05caeaceedd74d531d9d4.
tests: E_WARNING is triggered by min(1)
used func_get_args() as argument
improved some tests
removed some PHP 5.2 hints
Latte: unquoted macros are quoted, supports <span title={$x}> (Thanks to Jakub Vrana)
Database: removed unused code
Database: fixed row normalization (numeric keys, supplemental normalization)
Database: faster Row::offsetGet(), invalid offset triggers error
Database: added Connection::fetch*() tests