A new pre-alpha version of LongDecimal has been created. The highlight of this version is a new sqrt method that works pretty fast for even for long numbers.

This version is pretty complete in terms of functionality and has some tests. A sqrt has been added to LongDecimal. It can be discussed if we need more functions. Probably log and exp are needed, but trigonometric and hyperbolic functions might not be needed.

The gem-mechanism is still experimental.
This whole version is still considered pre-alpha.

Any feedback is welcome!