Dialog + Touch Damage + Update to Char. Movement

Dialog:
Imported the dialog system. Should be good to use.

Touch Damage Script:
Player will be damaged upon touching this object.

Enemy Follow Script:
The enemy will move toward the player if they are within a given range.

Update to Char. Movement:
Changed the rotation for backwards movement, and added an argument to
the jump force that lets the Physics engine know the force should be
applied immediately.
Updates
Merge pull request #2 from matt-short/npc-testing

NPC Interactions Merge
t
Revert "t"

This reverts commit fa77989beefee32162c75c982b4883706a6f3c4b.
Resolved conflicts
Merge branch 'master' of github.com:matt-short/Platformer-Repo
Implemented throwing feature (left click for now)