reafactor: upgrade typescript to 1.3 and pow-core to 0.1.7

- compiles with latest typescript
- runs somewhat, no tilemap rendering etc.
fix(TileMapRenderer): render tilemap with pow-core properly
tests: fix karma config by including pow-core
fix: issue where player would not collide with features
chore: cleanup breakpoint code
feat: support multiple tile map layers and tile collision

- Bring over multi-layer maps from pow-edit.
- Potential optimization opportunity in PlayerComponent -> collideMove
fix: support for astar path weights with multiple layers
chore: prune dead game fsm component
chore: specify node version in package.json
chore: fix npm peer dependencies for heroku
chore: prune dead objects when filtering
Merge pull request #13 from justindujardin/pow-core

Maps from pow-edit, pow-core, and Typescript 1.3