Stable beta, end user configurable variables

Added user configurable parameters.
I've changed the parameters very quickly, not all settings might work at the moment.

The hash calculation and verifications are not affected at all, i.e. should work reliably just as before.

Stable beta, still no end user config variables

beta2

very stable version, no end user config yet (not switched to TS yet)

Initial release (no version)

Stable but lacks many improvement