floating point error range classes
added a SafeFloatBatch class for not necessarily positive floats
added a GetFlattened function to RBTree, which returns a vector with all elements, in sorted order (mostly for testing purposes)
fixes for cases around zero
xcode project for VoronoiWorld
cleanup
moved vec and matrix to the math module
these were supposed to be added
started a math library with exact float/double utils, and packs
added a type param to the vec and matrix templs, so that both float and doulbe vectors (and possible others) are possible
started a development app, which visualizes the dendogram of a set of points in the plane
added a csv parser
added a SetIdentity function to Matrix
moved geometric computations used in fortunes algorithm to a predicates file
made a big integer class
fixes for big int lib
more big int fixes
removed user specific files
added operators to DoublePack
added int and double vec typedefs