added MEX files to speed up basic algebra
Found bug in subsasgn edge case.
recomp with size argument now supported.
MEXed some internals of msspoly.
added mosek support and initial support for DIMACS errors, not quite done yet
removed debug messages.
switched var/pow variables and moved error message.
sovler time logging.
switched back to a sparse operation for clearing powers.
Fixed handling of trigonometric variables.  Added test for columns of powers being all zero.
Fixed boundary case around empty matrix mult.
Switch transpose from ctranspose for correct eval. of trig poly.
utility call instead of spotprog call
error when only one row present fixed.
fixed empty row case.
mosek infeas. flags updated
added rescaling
moved c files to cpp and some clean up
Merged ani's SDSOS/DSOS changes from SVN with some additions of my own
Removed stale changelog and added .gitignore for MEX.