Used the merit function gradient in the calculation of initial slope for the cubic and quadratic line searches.

Hg-commit: f521cb51726fe18fd02926273a0567a1c5ba0597

reverted the merit function gradient code.

Hg-commit: 3009537ecdd094e69e0d904a6dfa2288921d57a2

Display algorithm type for snes_vi_type rs

Hg-commit: 1ece384e1d4112b7b5e6bd5d163d2a8a360cc6fc

Set pc operators and matsolverpackage when snes ksp is reset.

Hg-commit: 9bbd89a9e663cae9c5ba96a464f0382493aed7f4

Added a version of reduced space algorithm for SNESVI solver.

Hg-commit: ea8765e887a0a2ef54ba7f2e7527d40be79ab338

convert VI bounds from Matlab infinity to PETSc infinity
fix SuperLU so it doesn't crash viewing the matrix

Hg-commit: 06fe53680194c3b993bd2f60cd8ecec721aa2542

Removed the code for sufficient descent check and meritfunction gradient from SNESVI

Hg-commit: c0b852d2d7e1fe9496e01798d1e4c1c96e8d254a

commit after merge

Hg-commit: e1e7062d83ba7d5efb3de8950491f513184ce91a

Added VI algorithm type to SNESView_VI()

Hg-commit: f64d8892d5ed7b5b60ecf51680fc94295b9633ac

commit of new Matlab stuff

Hg-commit: df87754b27c0cfcc8dbf939bfdf11682b7f7ce65

Created new snes->ksp if the active and inactive set sizes change.Active set semismooth algorithm works now.

Hg-commit: 470b205247a77883af7064d468c3c8fd91b1930c

More work on active set algorithm.The algorithm works now if the active and inactive set sizes remain fixed during
the newton iterations. If the set sizes change then PCSetOperators is giving an erro

More work on active set algorithm.The algorithm works now if the active and inactive set sizes remain fixed during
the newton iterations. If the set sizes change then PCSetOperators is giving an error..need to look into this.

Hg-commit: 0bb2031b6c7f5223fa3f7d144f686a824d868a09

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Forgot destroying the matrices.

Hg-commit: ad607a7d401cf62ce43e94d1bd3aeb0870a46ac6

Trivial editing.

Hg-commit: 6049cc02efc8821ca8cec2a3a531ec335f9ab50d

Active set variational inequality solver works now...some clean up and optimization needs to be done.

Hg-commit: c69164c8c25eb3bd712d929a85fe2dc0cf22e17c

Fixed bugs in active and inactive set creation.

Hg-commit: 38063a18f23a0c80d433ee409f1794e356038048

A little reorganization needed for adding more active set related code.

Hg-commit: 87c9f685cbe1b2783d2c0d7d878a0dbb809b6740

Destroy index sets inside the loop otherwise it might give compiler warning.

Hg-commit: 51b39c703e0cc2a39e9170c857be90c1e1f718f8

Started adding active set semismooth algorithm stuff.

Hg-commit: 1888216fa5506f682dcf13435f4105345828fc39

PetscOptionsTruth -> PetscOptionsBool and related

Hg-commit: dfea0d194d94180043ddc1c2d9d074a0b8717c77

Moved SNESVISetVariableBounds one level up to SNES.

Hg-commit: ed879f87ff825e1ef7127f55d2aa24a89afef408

Changed PetscTruth to PetscBool and PETSC_TRUTH to PETSC_BOOL
note this requires a new sowing version

Hg-commit: 8b4c4277f05e3fb874633288193dab1105bf142a

More VI renaming stuff.
Renamed line search type option names.
Added missing printing of line search progress when full newton step is used for quadractic and basic line search type.

Hg-commit: a0d7

More VI renaming stuff.
Renamed line search type option names.
Added missing printing of line search progress when full newton step is used for quadractic and basic line search type.

Hg-commit: a0d7a0247d697188fa560912d57bb121c86b4d75

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Changed the names of function evaluation and jacobian evaulation routines

Hg-commit: 8b8413290daffb459d3104cb3272199b5a6dbc87

Renamed 'lsvi' to 'vi'

Hg-commit: 4f3ef42c14c4f16467b2ffdb3f09875c57455f8e