CDT and Bug fixes

• Added option to do a constrained Delaunay refinement after triangulation
• Added option to treat input CW or CCW
• Bug fixes

Original libtess2 with few bug fixes

This release contain several bug fixes over the original libtess2 release on Google Code.

• Fixed uninitialized variable: outOfMemory
• Added support for detecting original vertex indices
• Fixed a crash bug in case the whole input is colinear
• Changed internal include paths to ease compiling on multiple platforms

It is recommended to update to this version if you were previously using the download from Google Code.