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

show more ...

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

finished converting to use PetscTryMethod() and PetscUseMethod() whenever possible.

Hg-commit: 37cf7fcea5d871042d238d3c6a46bb0914b2136d

Remove unneeded automatic directories (like ftn-custom) and add examples directories where missing

Hg-commit: c07edda5e26ba2032650d7d8b71e751e885adde4

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

Hg-commit: 8b4c4277f05e3fb874633288193dab1105bf142a

forgot to change this.

Hg-commit: 1b7faa3efc8ce21d89adae50dfaf57081a42b888

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

show more ...

Changed the names of function evaluation and jacobian evaulation routines

Hg-commit: 8b8413290daffb459d3104cb3272199b5a6dbc87

Update the path for vi in snes makefile

Hg-commit: 3af162e51089e13c182b453af3b6d4cd56d9c053

Commit after merge

Hg-commit: 24f850366a2082bcd995e66168dffae5083a9b77

Renamed 'lsvi' to 'vi'

Hg-commit: 4f3ef42c14c4f16467b2ffdb3f09875c57455f8e

Fixed __FUNCT__ definition: SNESLineSearchSetParams, not SNESSetLineSearchParams.

Hg-commit: 572912f06af73c1c9e18237df2a37b1c24f30e44