Pulling up quick-return logic for diagonal matrix multiplication into GenericMatrix class
mul_full: scalar case is already handled
mul(MX(1),MX(0)) will be dense now
Exposing a bug in DSDP solver. It cannot handle linear equalities.
Merge pull request #587 from jgillis/develop

Pulling up quick-return logic for diagonal matrix multiplication into GenericMatrix class
Merge branch 'develop' of github.com:casadi/casadi into develop
Revert "Fixes #575. Enabled sparsity pattern caching"

This reverts commit af5c52e0456cfe741c65a82beb58f00af1656bc9.