enable env CHPL_FAST_FLAG as alternative to --fast
Merge remote-tracking branch 'upstream/master' into env-for-fast-2
CHPL_FAST_FLAG -> CHPL_FAST
Added a check to Expr::verify()
Add support for detecting cray-xe and cray-xc platform.

Look for CLEinfo config file, read it, and inspect the NETWORK value. If it is
"gem", set platform to "cray-xe". If it is "ari", set platform to "cray-xc".

If the CLEinfo file does not exist, or if it does not contain a known NETWORK
value, default to the old platform logic.
fix typos in chpl_platform
Update README.cray to reflect platform detection on XC and XE.
Merge branch 'master' of github.com:chapel-lang/chapel into better-detect-cray-platform
Fix range
Merge pull request #630 from thomasvandoren/better-detect-cray-platform

Add support for detecting cray-xe and cray-xc platform.

Look for CLEinfo config file, read it, and inspect the NETWORK value. If it is
"gem", set platform to "cray-xe". If it is "ari", set platform to "cray-xc".

If the CLEinfo file does not exist, or if it does not contain a known NETWORK
value, default to the old platform logic.
Two tweaks to fix wide string copy errors exposed by dlmalloc.

Handling of the distinguished value for an empty c_string_copy was not fully implemented
in the remote string routines.  Wide strings should report a length of zero if the string
itself is a NULL.  If the remote string pointer is null, the local one should be, too.
Merge pull request #633 from hildeth/master

Two tweaks to fix wide string copy errors exposed by dlmalloc.

Handling of the distinguished value for an empty c_string_copy was not fully implemented
in the remote string routines. Wide strings should report a length of zero if the string
itself is a NULL. If the remote string pointer is null, the local one should be, too.
Brief investigation into test/jacobi/waynew/example2 non-deterministic errors.

Adding the notes (though I intend to get to it for regressions week).
Merge pull request #635 from lydia-duncan/mysteriousJacobiInvestigation

Brief investigation into test/jacobi/waynew/example2 non-det errors.

Adding the notes (though I intend to get to it for regressions week).
Adding an note to the CONTRIBUTORS file for mis-attributed author commits

Due to the author mis-namings that stemmed from the conversion from
SVN/SourceForge to Git/GitHub, this commit flags those contributors
who were mis-named during the conversion process in order to set
the record straight where we give credit to past contributors.
Merge remote-tracking branch 'upstream/master' into env-for-fast-2
Merge pull request #636 from bradcray/contributors-misattributed

Adding an note to the CONTRIBUTORS file for mis-attributed authors

Due to the author mis-namings that stemmed from the conversion from
SVN/SourceForge to Git/GitHub, this commit flags those contributors
who were mis-named during the conversion process in order to set
the record straight where we give credit to past contributors.
Merge pull request #615 from vasslitvinov/add-a-verify-check

Added a check to Expr::verify()
that all AList elements point to each other via 'prev' and 'next' properly.
Merge pull request #458 from mppf/env-for-fast-2

Enable env CHPL_FAST as alternative to --fast

Such environment-variable triggering of --fast
is useful in some testing situations.