Start a travis config file.
Fix before_script.
Install csh.
Just use gcc for now.
Install bc on travis
Merge branch 'master' of github.com:chapel-lang/chapel into travis
update travis to only run smoke test
Add clang to travis build matrix
Run with CHPL_DEVELOPER=true and without.
phony
Revert "phony"

This reverts commit d96c27767f427e1e32a458979e2f7f6d3565296f.
For smoke test script, use CC to set CHPL_{HOST,TARGET}_COMPILER value.
Call printchplenv from smokeTest script.
Deal with gcc/gnu...
Disable clang build for travis for now. It fails to compile.

See failed build output here:

  https://travis-ci.org/chapel-lang/chapel/jobs/34771798
Just build one configuration with CHPL_DEVELOPER set for now.

In the future, we can expand on the configurations we run as well as do more
complex things with the smoke test script (e.g. build the compiler with
OPTIMIZE=1 DEBUG=0).
Merge branch 'master' of github.com:chapel-lang/chapel into travis
Better equality test for these associative arrays
An even better equality test
Fix one last(?) var->ref change