Begin code cleanup- comment atoms, remove unused files
Merge pull request #2 from cvxgrp/dev

Dev
Update README.md
Merge branch 'dev' of https://github.com/cvxgrp/CVX.jl
Begin code cleanup. Add promotions.jl, comment most atoms, add TODOs at required places and fix consistency issues
Allow problems with only equality constraints. Fixes #5
fix bugs in promotion
pulled
fixed some deprecation warnings
fixed some deprecation warnings
Comments and DCP checks for SOCP atoms
pretty printing
Cleanup display.jl, add show functions for Solution and CanonicalConstr
merged prettyprint
Added geo_mean between expression and constant
Export satisfy. Fixes #12
fix edge case bugs in minimize problems, reindent problems.jl using spaces. Fixes #13.
update control example. Allow indexing with :
Add vecnorm, update travis.yml to use ECOS
Update code to allow use of .+, .-, .<= etc. Fix signs in max/min. Fix bugs in stacking