Lua library stack

Lua library module "gz"

The Lua module gz is a C-module for the compression of data with the C-library zlib.

The calling sequences below assume the module has the name gz assigned to it from the require.
Calling compress functions is in object notation with g as the variable name.

`gz.compress(string, level)`	return compressed, compression level 0-9 = fast-best
`gz.compress(string)`	use default compression
`gz.compressbest(string)`	use best compression
`gz.compressfast(string)`	use fastest compression

g:decompress() return expanded data as string

gz.version() return version of module