Correct handling of IN operator argument

Filter with IN operator was not working, due to i,j,k being treated as a
single string. Added casting to address this, and extended a test to
check it.
Auth - parameter to override db table name
Merge pull request #116 from gobelinus/master

Auth - parameter to override db table name
Adding test for user db table.
Removed cast to int from IN list

Forgot that IN can also be used with lists of non-integer values. Thanks
to reminder by coleifer, removed cast, added test for non-integer lists.
Merge pull request #115 from cpbotha/in_operator_fix

Correct handling of IN operator argument
Update README.rst

project moved from bitbucket to github
Merge pull request #118 from dirkk0/patch-1

Update README.rst
Use BaseUser instead of BaseModel
Merge pull request #125 from Kizbitz/patch-1

Use BaseUser instead of BaseModel
Updated docs/auth.rst
Merge pull request #126 from lmas/update_docs

Updated docs/auth.rst
Better next redirect.
Merge branch 'master' of github.com:coleifer/flask-peewee