Fix bug 454: allow Block/Map objects for solving with SuperLU
test block objects for sparse solving
fix umfpack for row-major
discourage users to user developer preprocessor directives
Fix stopping criteria of CG
make sure we do not solve with a null right hand side
Memory expansion and few bugs
fix installation path
bump to beta1
Added tag 3.1.0-beta1 for changeset 920fc730b593
fix documentaion of twistedBy
For consistency, Simplicial* now factorizes P A P^-1 (instead of P^-1 A P).
Document how is applied the permutation in Simplicial* .
fix a warning
clean the support for testing existing sparse problems
BTL: add missing TRMM plots, update Eigen's interface
Memory management
fix ambiguous calls in the functors by prefixing function calls with internal::
workaround ICC 11.1 compilation issue
triangular solve... almost finished
Fix bug 466: race condition destected by helgrind in manage_caching_sizes.
After all, the solution based on threadprivate is not that costly.