Fixed include file in ProgressBar.cpp for getenv.
Added check for SGE to progress bar. If we are running under SGE, we should write to file SGE .o file. Under afs it is doubtful that the file will be flushed anyway making the information pointless.
fixing string bugs in ProgressBar
ProgressBar should only print status when it is actually attached to a tty. This should quiet down those background jobs.
ProgressBar compilation fixes for linux
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