Full backtrace reedited, some starting variables deletion, added possibility to choose output or blank after optimization. Examples update.
Finally, static comments in echos from functions have been deleted. Some other minor optimizations. Tagged as 0.2.2.
Destruct function updated - check if variable is set before destruct it, comments updated.
Issue #2 fixed.
minor fix in version number - no chance to remember ;)
Fixed some issue with full backtrace allowing to see login or password. with specyfic mysql error. Removed dump function due to very low functionality.