Use latest stable CouchDB ppa

Use CouchDB 1.5
Cassandra 2.0.9
Merge pull request #341 from michaelklishin/patch-3

Cassandra 2.0.9
Merge pull request #340 from robertkowalski/couchdb-1.5-latest-stable

Use latest stable CouchDB ppa
Add Go 1.3
Remove go1.2
Update RVM to the latest release
add a dictionaries recipe

which installs the wamerican package
Add Maven Central Repository

This repository is backed by CDN.
Detailed discussion is found in https://github.com/travis-ci/travis-ci/issues/2528.
Merge branch 'master' of github.com:travis-ci/travis-cookbooks
Update HHVM to 3.2.0
Update php-build

This commit includes https://github.com/CHH/php-build/pull/207
Update php-build
Merge pull request #342 from GrahamCampbell/patch-1

Update php-build
Update PHP memcache extension to 3.0.8 beta for PHP >= 5.3.

Fixes travis-ci/travis-ci#2541.