refs #6543 Attempt to fix and enable OMP again
refs #5971 DirectEnergyConversion to accepts different monitor number

(and fix the bug which was introduced by partial switch to it)
refs #6543 technical changes
refs #6543 -- disabled OMP again

to resolve strange problem with memory leak in DataHandling dll.
refs #6486 Fixed out of bounds possibility for LoadNexusMonitors.cpp
refs #6486 -- no, now it fixes LoadNexusMonitors.cpp correctly