Adding PHP7 to build matrix.

[ycombinator]

No description provided.

[GrahamCampbell]

"7.0" would be a better idea btw.

[ycombinator]

should we also add "7" to the list of allowed failures?

@jamiehannaford I was waiting to do that until we had our first PHP7 failure and had a chance to investigate it.

[ycombinator]

The build seems to hang at a particular test. Also, one of the tests fails but we can't tell which one because the build hangs. See https://travis-ci.org/rackspace/php-opencloud/jobs/52221618.

I'm going to try and spin up a PHP 7 dev environment and investigate the failing test as well as the hanging test.

UPDATE: Also, until I can investigate and fix, I will add PHP 7 to the list of builds allowed to fail, per @jamiehannaford's suggestion earlier.

[coveralls]

Coverage remained the same at 88.22% when pulling c9150e0 on ycombinator:php7 into e8c07d1 on rackspace:working.

[ycombinator]

Marking this PR as work in progress until I can figure out why PHP 7 builds are failing and fix if possible.

[ycombinator]

I tried making php-opencloud work with PHP7 but couldn't. Any changes I needed to make it work would break with PHP 5.4. As such, after consultation with @jamiehannaford, I've decided to abandon this effort.