Fix list_view() and aid() debugging tools.
enable env CHPL_FAST_FLAG as alternative to --fast
Merge branch 'master' of https://github.com/chapel-lang/chapel
Merge remote-tracking branch 'upstream/master' into env-for-fast-2
CHPL_FAST_FLAG -> CHPL_FAST
Added a check to Expr::verify()
Fixed a minor glitch in each of sub_test and paratest.server
Add isLink functionality

This adds the ability to check within Chapel code if a provided name corresponds
to a soft link.  The interface is visible in the FileSystem module, the
implementation itself lies in chpl-file-utils.c.  Also provide two test cases:
one to exercise files and directories that are and are not links, and one to
exercise the case where the link itself does not exist.
Add timing for each sub_test call.

Register exit handler for sub_test python script that prints the elapsed
seconds from start up to exit (successful exit only). If sub_test is called
without CHPL_ONETEST, e.g. it is called on a directory, it will print a line
like the following when it is complete:

```
[Finished subtest "release/examples" - 16.330 seconds]
```

If sub_test is called with CHPL_ONETEST set, e.g. it is called on a specific
.chpl file, it will print a line like the following when it is complete:

```
[Finished subtest "release/examples/hello" - 2.711 seconds]
```

This will help developers do ad-hoc comparisons of nightly runs as needed. For
example, if a developer things a single test or new suite of tests is adding
significant time to the overall test time, it will be easy to find this line
and compare between two builds.

This is not meant to replace, or even enhance, compiler or runtime performance
tracking that already exists.
Remove a couple of debug lines
Merge branch 'master' of https://github.com/chapel-lang/chapel into add-timing-for-sub-test
Set WARNINGS=1 instead of CHPL_DEVELOPER in nightly.

CHPL_DEVELOPER was added to nightly in commit 06088fc9. Based on internal
notes, it appears CHPL_DEVELOPER was added to enable additional C compiler
warnings. With pull request #594 those warnings can now be enabled by setting
WARNINGS=1 when calling make.
Update CHPL_DEVELOPER.txt docs.
Merge branch 'master' of github.com:chapel-lang/chapel into use-warnings-var-in-nightly

Conflicts:
	doc/developer/bestPractices/CHPL_DEVELOPER.txt
Remove CHPL_DEVELOPER from common.bash.
Add WARNINGS=1 when calling make in smokeTest.
Updating REGRESSIONS based on yesterday's runs and those that are in today
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
Add explicit code to clean up GMP structure when done.