Added quad_form for matricesin matrix_tools
added 0-norm of product calculation without memory allocation
IOschemes can handle DMatrix now
lint fix
automatic documentation update
Tentative trunk fix
use the new snopt C++ api
Merge branch 'develop' of github.com:casadi/casadi into develop
#1228: disable snopt error handling
filter out some files from the linter
lint snopt interface
snopt permission message
remove casadi.py from debian
debian installs casadi_loader.py
rename libsundials_interface to libsundials_common

This is to avoid ambiguity with the upcoming debian libcasadi-sundials package (which contains the plugins)
create libcasadi-sundials-common package
remove some debian copywrites

these removals are all for files which are no longer distributed in the debian package
add CMAKE_SKIP_RPATH=ON for debian
add libcasadi_integrators to debian core packages
skip sqpmethod/stabilizedsqp tests if solvers aren't there

debian doesn't install these so the tests fail without this patch