Documentation incorrect for Pool helper object

[emprice]

The documentation for Pool gives conflicting information about how to use Pool. Neither pool.like nor pool.loglikelihood are valid attributes; the correct attribute in the current version is loglike, which doesn't appear in the documentation, just the source. I'm guessing this has changed over versions and the documentation just wasn't updated to reflect the new attribute name.

[segasai]

Thanks. Fixed 241acc7c5054b9c930c3a073fe71b195127e3864