Ignore more emacs backup files.
Make check_warnings.pl work reliably for MPI analyses.
CheckACQtFileIntegrity: Check total number of events per file.

Compare the number of events stored in the file header with the sum of
all events in the chunks.

The comparison is done with the sum of numbers stored in the beginning
of each chunk. The events are not actually counted, as that would
require uncompressing every chunk and streaming events out of it which
would be much slower.
Add check for large gaps in SimpleGraphLookup.

The Query() function now takes a maxDeltaX argument.

Alignment and gain lookups will set the fLastQueryOk flag to false if
the gap between the points used for interpolation is larger than one
day.
FileManager/MPI: make sure that QFile pointer is not 0.
FileManager/MPI: Make sure that AC::RunHeader pointer is not 0.
Enable MPI support by default if mpic++ compiler wrapper is found.

After this commit it's no longer necessary to specify CONFIG+=ENABLE_MPI
when invoking qmake. ENABLE_MPI will be automatically set if the mpic++
compiler wrapper is found.

Compilation with "ENABLE_MPI" set will not alter the way normal
sequential programs behave, so it's safe to enable it by default if
possible.

Please make sure that the correct module load statements are placed in
your shell startup scripts.
Fix programs which pass 0 as first argument to FileManager.

These programs will now work correctly when run in normal mode. When run
with mpirun, they will assert as the config handler is required there.
AC.pri: Fix shell redirect for shells which don't support >&.

Apparently ubuntu links /bin/sh to /bin/dash and it doesn't support
>&. This should work everywhere.