Removed unnecessary html js references

removed these references, game still works /*<script
src="js/jquery-2.0.3.min.js" type="text/javascript"></script>
<script src="js/purl.js" type="text/javascript"></script>*/
updated references for assets

was using diff version of invaders.js than I though.  updated to use
mine, placed in js folder and changed function preload() to load assets
from invaders\assets dir.
replaced player ship with Raiden jet!

replaced the player ship with customized raiden plane
adjusted the y coordinate for bullet firing

bullet firing now fires from the nose of the spaceship by subtracing 20
px from player.y in fireBullet function
touch enabled!

successfully enabled touch events for movement on ios
attempting to add loadNextWave function

instead of ending the game when all enemies in group are killed, re-load
an enemy group. Still in progress
loadNextWave now working!

loading the wave and displaying text with a timer now working in build.
Added Waves

Waves are now in the timer function, giving a pause between waves with
the wave count displayed and then hidden once new enemy group is spawned
adding new graphics gale assets
added keyboard up and down movement controls

added keyboard up and down with if statements
fixed bug firing after death

fixed bug where ship continues to fire after death. Also added new
retroFront for Game Over and New Wave
changed resolution to 640 x 960

new resolution matches native iPhone retina
new bg and speed

added new background and increased speed and enemy bullets
bug fix: reset enemy bullets on restart

when restart function is called now adding enemyBullets.callAll('kill')
to kill all the old bullets