Flammable Turkeys

much scarier than you think
![fire-turkeys](https://f.cloud.github.com/assets/2179547/657719/7b5626b2-d578-11e2-8fa4-fd74ebc22a1a.png)

this is just a wip adding in functionality to allow for flammable enemies, the individual enemy property file has three more properties, isFlammable (self explanatory), burn_positions (which is the relative position for the flames) and burn_offset (offsets for the left facing sprites).

Still needed
1. Damage while burning
2. Put out fire
3. Better fire sprites (anyone up to the challenge)
4. Share fire, possibly?
5. If anything else needs to be added please let me know

I would like eventually to add the burn property to other nodes as well (player, breakable_blocks) but i thought this would be a good start.

For now only the jive turkeys are flammable, I'm not sure what other enemies would work well for being on fire.

Thanks to @NimbusBP1729 for providing the initial burn functionality that this build on.