Fixes #1726.

Replaces intersectSegmentPolygon and intersectLinePolygon "optimized"
implementations with the more robust implementations used for intersectLine and
intersectSegments
Notify if build tools and SDK API is not up to date

Formatting consistancy

build tools

Update git ignore
Merge pull request #1755 from Tom-Ski/uipatch

Notify if build tools and SDK API is not up to date
Merge pull request #1746 from manuel-freire/polygon-segment-intersection-fix

Fixes #1726 (precision problems in intersectSegmentPolygon and intersectLinePolygon).
Fix bug in polygon intersections
Merge pull request #1762 from manuel-freire/poly-intersection

Fix bug in polygon intersections
New "minimal" JSON-like format parsing.

Supports unquoted values which start with a number.
closes #1760
Merge branch 'origin/master'
Escape tab, CR, LF.
Useless line anymore
Merge pull request #1768 from semtiko/patch-1

Useless line anymore
Very Minor Update FirstPersonCameraController.java

Removed the completely superfluous private tmp2 field.
Merge pull request #1771 from Hulzenga/patch-1

Very Minor Update FirstPersonCameraController.java
adding in initial version of texture unpacker.
Merge pull request #1774 from mbazos/master

adding in initial version of texture unpacker.
Even more lenient minimal JSON-like format.
Merge branch 'origin/master'
Forgot to format.

:(
Set the filter/wrap on manual load (see #1484)
Update README.md