Added the fast path cancel patch...
Merge branch 'fast-path-cancel'
Added "extramem" flag for ROSS core.

It should now exist for all models.
removed tw_state_save function (unused)
removed dead code
removed tw_state_alloc, put relevant code it tw-lp.c
removed g_tw_sv_growcnt, unused
replaced function call to tw_state_rollback with relevant code
removed references to tw_state_rollback
removed tw-state.c
Merge pull request #1 from gonsie/cleanup

Cleanup
deleted rnf
removed rnf from cmake
removed state_qh from tw_lp
removed tw_lp_state struct from ross-types
Merge branch 'master' of github.com:gonsie/ROSS into IO

* 'master' of github.com:gonsie/ROSS:
  removed tw_lp_state struct from ross-types
  removed state_qh from tw_lp
  removed rnf from cmake
  deleted rnf
  removed tw-state.c
  removed references to tw_state_rollback
  replaced function call to tw_state_rollback with relevant code
  removed g_tw_sv_growcnt, unused
  removed tw_state_alloc, put relevant code it tw-lp.c
  removed dead code
  removed tw_state_save function (unused)
  Added "extramem" flag for ROSS core.
  Added the fast path cancel patch...