The deprecated -log_summary_exclude was still being used when it should have been -log_exclude

Reported-by: Jose E. Roman <jroman@dsic.upv.es>

Added support for saving single reals to binary file and
updated PetscBinaryRead.m to read them so now -ts_monitor binary
can easily be read in Matlab to get the timesteps

Merge branch 'maint'

TS: Fix docs for TSSetI2Jacobian()

Support -ts_monitor_lg_solution_variables when the variables are not explicitly named

It uses integers for the names in the this case

Merge branch 'dalcinl/tsbdf' into maint

TSALPHA2: New implementation for second order systems

* Support for event detection.
* Support for time adaptivity based on approximating the local truncation
error using backward difference formu

TSALPHA2: New implementation for second order systems

* Support for event detection.
* Support for time adaptivity based on approximating the local truncation
error using backward difference formulas.
* Use an step-halving approach in the initial step to compute a consistent
initial state as well as approximating the local truncation error.

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TS: Add interface API for 2nd order systems

TS: Add BDF implementation

Merge branch 'hongzh/add-ts-trajectory-statistics'

TSEvent: Add a flag to the TS structure to handle step restart

fix an argument error for certain combinations of ts trajectory options (e.g. make runex20adj_13)

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

TS: Fix function declarations and visibility

* Most of these fixes where spotted by GCC -Wmissing-declarations

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