More Bug Fixes

Fixed more bugs in the combat loop and added a number of troubleshooting prints commands.
Fixed 'none' values

fixed none values being passed by the player damage loop and another couple small bugs.  Also made a number of tweaks to the game play.
Added potion use module.

Updated with a module that allows using potions to recover from combat.
Tweaked loot after combat to deliver greater rewards.
Tested changed for bugs.
Tested full functionality.
Program can be considered a working game now.
Commented out the test code.
Fixed bugs in potion buying.

Potion buying bug fixed.
Fixed some formatting.
Stat bonus after combat added.

Added the stat bonus modifier after the combat loop.
Fixed potion purchase again.
Fixed HP regain after combat.
    -There was an issue where after using a health potion the character HP wouldn't save properly.
Grammer Corrections
Merge pull request #13 from bedevere/0.15

0.15