Merge pull request #6 from cooldryx/add/player

[MTB] Add player model
Merge pull request #8 from cooldryx/add/addAttribute

[MTB] Add attribute methods
Merge pull request #9 from cooldryx/add/pet

[MTB] Add basic pet model
Merge pull request #11 from cooldryx/add/phpunit

[MTB] Add inital phpunit
Add sample travis.yml file