* Blacklist PGI from using conformant array parameters.
There is a bug in pgcc with conformant array parameters where the
length argument is a pointer which triggers a compiler error
(PGC-S-0094, to be specific). The issue has been reported to PGI and
is being tracked internally as TPR 23778. For more information, see
https://www.pgroup.com/userforum/viewtopic.php?t=5501
* travis: Add PGI Community Edition build.
For details on the installation script, see
https://github.com/nemequ/pgi-travis
Previously, the Python package consisted of a single extension
module, so `build_ext` was sufficient. Now, the package
contains a native module and an extension module, so both
`build_py` and `build_ext` are required. Instead, run `build`,
which calls both `build_py` and `build_ext` automatically.
