Merge pull request #70 from gurnam17/master

Update version number
movement of all enemy entity
Merge pull request #71 from katiewood/master

movement of all enemy entity
added comments to movement of sprite
Merge pull request #72 from katiewood/master

added comments to movement of sprite
Merge remote-tracking branch 'upstream/master'
change enemy move speed
Merge remote-tracking branch 'upstream/master'
Merge pull request #73 from katiewood/master

change enemy move speed
Merge remote-tracking branch 'upstream/master'