Merge pull request #17 from laszlokorte/vector-math-master

use vector_math library instead of custom vector implementation.
Updates to doc and generated JS now with vector_math
Updated minor version due to new vector_math integration
Remove generated .js files from git. Issue #19
start using of aabb2
finish using aabb2
remove unused axis_align_box code
Remove setFromCombination and use hull() instead
remove Aabb2_testOverlap and use Aabb2#intersectsWith instead
remove Aabb2_setFrom and use Aabb2#copyFrom instead