Merge pull request #9 from trostik/master

Added the health bar. Fixed issues in the canon code. Done another sh#@!y merge.
enemy refactor
find target
enemy moves
lookat
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Merge branch 'master' of https://github.com/sagivo/Unity2d-Game

merging from master to my fork