add: link to @schteppe's fork (close #20)
Added IDA* implementation, visualisation and unit test. The "Node.jumptest" property was made generic so IDA* can use it for visualisation.
Merge pull request #43 from Gerjo/master

Added IDA* implementation, visualisation and unit test.
mod: bump version number
Merge branch 'master' into gh-pages

Conflicts:
	TODO
	package.json
	src/PathFinding.js
	src/finders/JumpPointFinder.js
	test/PathTest.js