Improved Date.now method. Fixed some strings. Removed vulnerabilities on enemies. Zombies make more harm. Life and mana is kept through levels
Removed credits. Optimized some methods. Optimized css and html. Current size 12665 bytes
Adds route recalculation, fixs final point bug and validates planted for enemy movement
New task for gulp
Optimized powers
Fixed collisions with powers
More optimizations for items
Merge from master
Merge pull request #5 from satanas/feature/ai

Adds route recalculation, fixs final point bug and validates planted for enemy movement
Few optimizations and fixes
Merge remote-tracking branch 'origin/master'
Fixed exit in hero
Improved cleaning
Added sprite for switches and powers
Rendered sprite for items and switches. Optimized scale
Restored state
Fixed bg color for fire item