modified setup.py to work on linux systems
Updated CVX Shim to work with version 2.0, build >945.
Merged modifications by Eric

Merge branch 'master' of https://github.com/ifa-ethz/ecos
allow 0 row A,b to be arguments.
added fillintest.m which reports the fill-in factors for different approaches.
Merge branch 'master' of https://github.com/ifa-ethz/ecos
added LDL and u.m to repository in the matlab directory
tester for cone rewriting.
added prob2fixedcones.m, which converts the problem to a fixed cone size
reworked fillintest.m, added randomScaling generator
new test code
added dense mode for soc scalings, enabled with CONEMODE (1) in cone.h. Added also static regularization which improved numerical behavior in corner cases
Merge branch 'master' of https://github.com/ifa-ethz/ecos
added refined profiling to ldl, removed some non-ansi compatible comments
changed default profiling behavior to runtime only.
added a cvx install script for ecos.
fixed ecos shim.
modified mex file to properly handle no Ax=b constraint.
added DIMACS test cases
updated objvals of dimacs test