updated eligible years, player position table
player position table created and tweeks made

changed active record migration for player name, and date stamp for player position

also created tests for player eligible_year and ran a test, changing the code for how the eligible years are created in form
Added minitest

Tests can now be run with `rake minitest` intead of `rake test`
Test #1
Merge pull request #9 from mgobirch/tests

Testing questions go here