Implemented Neutral and Hunter Cards

Cairne Bloodhoof, Deadly Shot, Explosive Shot, Frost Elemental, Harvest
Golem, Houndmaster, King Krush, Multi-Shot, Savannah Highmane,
Stampeding Kodo, Sylvanas Windrunner, The Beast, Unleash the Hounds
Merge branch 'master' of https://github.com/danielyule/hearthstone-simulator
flake8 fixes
flake8 Ugly Indentation
Improved Kill Command

Fixed line length issues
Last one, I promise
Test coverage, Fixed 3 Neutrals

Fixed Venture Co Mercenary, Leper Gnome, and Spiteful Smith
Noticed Freezing Trap Bug
flake8 of course
Fixed Merge Conflict
Fixed Leper Gnome.

Closes #38
Merge branch 'randomflyingtaco-master'