Fixed bugs where parent sbml node of AST may be NULL, fixed mem leak in this case. getLogger creates a mutex right away so init code works with many threads. Enabled releasing of the GIL for long running methods.
Merge branch 'develop' of github.com:AndySomogyi/roadrunner into develop
cleanup of steady state, removed dead code, consistent naming convention for conserved moieties.
ran win32 tests
performance tuning, do not generate un-needed code for immutable models
ran linux 64 bit tests
tweak for MSVC, ran win32 tests
ran linux 32 bit tests
Merge branch 'perf' into develop
Aligned some comments