updated Doxyfile with auto-generated content from doxygen 1.8.1.2.  Fixed bad exludes, enabled preprocessor parsing.
ignore doxygen generated content
copy over js to local html output folder
using updated, and much more default, doxygen style
added cinder link to new (slim) doxygen header. turned on search bar.
Implementing Path2d tangents and arc-length iteration
Updating bezierPath sample to demonstrate tangents and arc-length iteration
Creating BezierPathIteration sample
don't use website's doxygen header, it is out of date
Merge remote-tracking branch 'origin/doxygen_updated' into dev
.gitignore manual merge
added BezierPathIteration scons