Merge pull request #1 from azrafe7/master

Initial fixes to make it work with a simple (test.png) image
Kept it simple to run code without Openfl from hxml by adding -D hxmlFlash switch for flash use
( I can't always install openfl on my old mac ! )
added -D testImage switch
corrected path in open bitmap example.
updated hxml to use 10.2 flash like hxproj versions.
Looking at azrafe7 I have added some differences to get BasicDemo working, but currently the Enum seems an issue
but reluctant to go Dynamic so checking in work in progress
Reflecting changes from `one-to-one` branch on master codebase
very small typo change third demo now compiles and runs but pathfinding code looks a bit weird.
Removed un-needed private
Fixed Pathfinding