Removed old default.propties to stop eclipse from bitching around and not compiling into the jar.
Fixed issue #70.
fix Direction to allow 8-pos
Merge pull request #124 from winniehell/direction-patch

Allow diagonals in Direction class.
Added Apache v2 LICENSE.md file.
Updated .gitignore for future Android Studio support.
Added crashlytics xml file to gitignore.
Fixed a bug in ManhattanHeuristic.

As seen in PR #218 .
Added donation section in README.md.
Update README.md
Added tip4commit to README.