initial import igl_lib
fixed compilation errors in tt and edge topology, added basic example of usage
added matlab interface and usage example
added header files:
PI constant
ZERO constants
useful material color floats
get current seconds since EPOCH function
ReAntTweakBar library

Added examples folder:
  ReAntTweakBar example with static option
Added is_dir and is_dir example
moved Core example in a subfolder
added Core examples makefile and readme
clean up make and readme in examples/Core
added a bunch of quaternion math, vector math and trackball
source citation for trackball
Added some header ifdefs,
translator for Cocoa key codes to anttweakbar's
small trackball GLUT example
Small change to trackball example
changed interfaces of read*.h to return bool,
added php-like pathinfo, dirname, basename functions,
pathinfo example
VBO (Vertex buffer object) handlers for eigen style V and F, normalize vector lists, compute normals
Templated the quaternion functions and EPS, a few more quaternion functions, fixed prototypes and header defines in writeOBJ
added stdin_to_temp for using pipe/stdin as file (for functions that need to fseek, rewind etc)
Important BUG FIXES to create_*_vbo,
added print gl get (work in progress)
Templatized (or began to at least) canonical_quaternions
added function to snap to canonical view quaternions
Added more php-like file permissions/existence checkers. And an example which tests them against their php cousins.
added file -> string function and example,
better comments on pathinfo, basename, dirname,
added functions to assist creation, loading of GLSL shaders (some of which is translated from Denis Kovacs's NYU code)
dmat matrix file format reader, writer and example
sort, reorder vectors and eigen (dynamic) matrices like matlabs sort (with example)
function to retrieve shader uniform names and locations,
function to report open gl errors to stderr
example that prints opengl version and glsl version,