Epetra: BlockMap: Minor correction to public documentation

Build/Test Cases Summary
Enabled Packages: Epetra
Enabled all Forward Packages
0) MPI_DEBUG => passed: passed=894,notpassed=0 (47.40 min)
1) SERIAL_RELEASE => passed: passed=856,notpassed=0 (49.17 min)
MueLu: More support for reuse.

1) We can now actually reuse the AP and RAP patterns.
2) This can be controlled from the input deck...
First draft
MueLU: More reuse timers

Build/Test Cases Summary
Enabled Packages: MueLu
Enabled all Forward Packages
0) MPI_DEBUG => Skipped configure, build, test due to no enabled packages! => Does not affect push readiness! (-1.00 min)
1) SERIAL_RELEASE => Skipped configure, build, test due to no enabled packages! => Does not affect push readiness! (-1.00 min)
2) MPI_DEBUG_SS => passed: passed=242,notpassed=0 (67.72 min)
Other local commits for this build/test group: 718933e
Version of remap that compiles; not yet tested.
Merge branch 'master' of software.sandia.gov:/space/git/Trilinos
Kokkos & UQ: Performance unit test for CG on ensemble.
IOSS: Minor cleanup and optimization

(From Sierra)
SEACAS: mapvar - fix mising variable initialization

(From Sierra)

Build/Test Cases Summary
Enabled Packages: SEACASMapvar, SEACASIoss
Disabled Packages: Panzer,PyTrilinos
Enabled all Forward Packages
0) MPI_DEBUG => Skipped configure, build, test due to no enabled packages! => Does not affect push readiness! (-1.00 min)
1) SERIAL_RELEASE => Skipped configure, build, test due to no enabled packages! => Does not affect push readiness! (-1.00 min)
2) MPI_DEBUG_SS => passed: passed=21,notpassed=0 (24.51 min)
3) SERIAL_RELEASE_SS => passed: passed=22,notpassed=0 (26.59 min)
Other local commits for this build/test group: 1c1eaf6
Greedy algorithm for maximum-weight matching for remap feature.
This algorithm uses sort, so is not linear time, but should be
fast enough for most use cases.
Cleanup. Improve comments.
Need to change data type of wgts from size_t to long because Teuchos::gatherv
does not support size_t.
Merge branch 'master' of software.sandia.gov:/space/git/Trilinos
Changing some datatypes from size_t to long because Teuchos::gatherv
doesn't support size_t.
Fixed some memory errors
Moved call to Remap into the partitioning solution; it must be called
after GIDs and parts are migrated back to their home process.
Removing symmetric edges; our simple matching does not need them.
Also added some debugging output that will need to be removed later.
Tweak the config script for Sierra
Removed some unnecessary manipulation of communicators
Modified rcbTest.cpp to allow use for debugging (read from file, specify
number of parts, provide more output).
Also, despite its name, it was running Block partitioning for parallel cases.