Merged in dalcinl/fix-tsrollback (pull request #456)

TS: Refactor TSStep() and TSRollBack()

TS: Run forward cost integral after event handling if step not rolled back

TS: Refactor TSStep() and TSRollBack()

* TSStep() handles the step counter increment, and not TSStep_XXX().
* TSRollBack() handles the step counter decrement.
* Removed ``time_step_prev`` from the T

TS: Refactor TSStep() and TSRollBack()

* TSStep() handles the step counter increment, and not TSStep_XXX().
* TSRollBack() handles the step counter decrement.
* Removed ``time_step_prev`` from the TS structure. New code should use
ts->ptime - ts->ptime_prev to determine the previous time step size.
* Removed unused ``time_step_orig`` from the TS structure.
* Removed unused ``time_step_since_decrease`` from the TS structure.
* Minor update bouncing ball test examples.
* Regenerate some test examples output.

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TS: Fix TSRollBack() to error if called twice

TS: Remove TSSetRetainStages()

TS: Add typedef TSForcingFunction

Merged in dalcinl/fix-tsadapt (pull request #441)

TSAdapt and related improvements

TS: Use TSBEULER as the default type if IFunction was set

TS: Check ts->exact_final_time after TSSetUp()

This way, we let the implementation decide on a sensible default. For
example, the implementation may decide to use MATCHSTEP when adaptivity
is explic

TS: Check ts->exact_final_time after TSSetUp()

This way, we let the implementation decide on a sensible default. For
example, the implementation may decide to use MATCHSTEP when adaptivity
is explicitly turned on as in TSTHETA or TSALPHA.

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TS: Add TSEvaluateWLTE()

TS: Move calls to TSPreStep() from implementation to interface

* Make the semantics symmetric with TSPostStep()
* Handle rolled back steps appropriately
* If a callback is ever needed to run at the

TS: Move calls to TSPreStep() from implementation to interface

* Make the semantics symmetric with TSPostStep()
* Handle rolled back steps appropriately
* If a callback is ever needed to run at the begining of each TSStep()
(including rolled back steps and step rejections), we can add a new API
to support this particular need (BTW, patches welcome!)

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TS: Fix TSGetAdapt() to require output argument

The handling of the output argument and was breaking standard API rules.

TS: Minor fixes to TSSetFromOptions

Move call to TSTrajectorySetFromOptions() outside the PetscOptionsBegin()
and PetscOptionsEnd() block corresponding to parent TS.

TS: Unimportant code cleanup

Merge branch 'tisaac/sf-fix-multi-sf-leaves' into tisaac/dmp4est-feature-injection

* tisaac/sf-fix-multi-sf-leaves: (174 commits)
PetscSF: fix PetscSFGetMultiSF() for sparse leaves
PetscSF: make

Merge branch 'tisaac/sf-fix-multi-sf-leaves' into tisaac/dmp4est-feature-injection

* tisaac/sf-fix-multi-sf-leaves: (174 commits)
PetscSF: fix PetscSFGetMultiSF() for sparse leaves
PetscSF: make regression test that fails
few more clang static analyzer fixes
many issues detected by clang static analyzer
Update hypre to its release version
Updates for xSDKTrilinos builds
Added --download-xsdktrilinos
Communicator passed to VecCreateSeq should be PETSC_COMM_SELF
PCMG man page: fix typo in options name
Bib: Added refs
DMLabel: Removed unused variable
Metis tries to use backtrace which requires -lexecinfo on some systems such as freebsd Remove -lexecinfo from freebsd configure files since it is only needed by metis
add alternative output that occurs on some systems due to use of random number generator in partitioner
Plex: When creating cohesive submeshes, fix memory leak
Plex ex11: Updated output for new distribution algorithm
Plex: When explicitly distributing the depth label, we must recreate empty strata
Plex: When partitioning, the cell numbering should include hybrid points
Plex: Allow cell and vertex numberings to include hybrid points
need to show diffs of ex22 if it fails
Support two different output for test example, since due to roundoff this example can produce slightly different convergence history
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Merge branch 'master' of https://bitbucket.org/petsc/petsc

Merge branch 'barry/monitor-fromoptions'

Merge branch 'master' of bitbucket.org:petsc/petsc

Merged in dalcinl/ts-dm-output-seq (pull request #439)

Simplify handling of DMSetOutputSequenceNumber() in TS

TS: Move DMSetOutputSequenceNumber() calls to TSMonitor()

Merged in dalcinl/update-ts-alpha (pull request #437)

Refactor TSEvent and update TSALPHA

TSEvent: Various fixes and cleanups

* Rename most of TSEventMonitorXXX() to TSEvent[Handler]XXX
* Rename the private TSEvent structure as well as some slots within it

Merged in dalcinl/fix-draw-axis (pull request #436)

PetscDraw: Rework implementation of PetscDrawAxis

Merge branch 'master' into stefano_zampini/feature-pcbddc-saddlepoint

Merge branch 'barry/improve-ts-monitor-interpolation'