Add July 2014 VM update announcement

The Android update shall be coordinated with the [documentation update](https://github.com/travis-ci/docs-travis-ci-com/pull/91).
There's a fix that will need to be merged into php-build, and then I will submit a pull to travis' cookbooks. Without it php 5.3/5.2 will break on the next provisioning! https://github.com/CHH/php-build/pull/207