Filter players by position

Squashed commit of the following:

commit 02a05f5b6460930ceb779fa1c65470f448dc6d92
Merge: 5a60658 44812f1
Author: cbelsole <cbelsole@gmail.com>
Date:   Tue Jul 15 23:40:36 2014 -0500

    merge from master

commit 5a6065882d62f549f86cfad89c2ab1b4424eed47
Author: Chris Belsole <chris.belsole@cerner.com>
Date:   Tue Jul 15 21:12:38 2014 -0500

    added in player filtering