Add first draft of 'android-sdk' cookbook
Update and Improve Android SDK cookbook

- Now depends on 'ark' cookbook (for sweat download/unzip tooling)
- Fatal error if not provisioning a Linux 32-bit OS
- Download SDK 21.1 (last version without interactive prompt about
  license agreement)
- Preinstall a maximum of relevant SDK components (including SDK 22+)
Android SDK updates: keep it simple at the moment
Add support of Ubuntu 64-bit + various fixes

This cookbook has been extracted to
https://github.com/gildegoma/chef-android-sdk
for generic community development, but keeping as goal to satisfy
Travis CI needs in the future and thus keep both in sync.
Fix ANDROID_HOME issue and reorder recipe steps

android-maven-plugin requires a trailing slash if ANDROID_HOME refers to a symbolic link
(see more unix convention debates if you want ;-)
Synchronize Android cookbook with upstream repo

Based on https://github.com/gildegoma/chef-android-sdk/commit/79b8bc13d799150c79d3fd31811a82568db5b068
Android: install older System Images with '--all'
Support hhvm 3.0
Merge pull request #290 from GrahamCampbell/hhvm

Support hhvm 3.0
bump rake and bundler
Integrate community/android-sdk v0.1.0 (released)
Merge pull request #153 from travis-ci/add-android-sdk

Add 'android-sdk' cookbook
HHVM 3.0.1
Merge pull request #291 from GrahamCampbell/hhvm

[IMPORTANT] HHVM 3.0.1
don't remove the old bundler, just install the newer one cc/@mpapis
Android SDK: Fine tuning

- /usr/local/android-sdk/... is owned by travis (instead of root)
- Don't pre-install Intel/x86 System Images

Note:
The "include_attribute 'travis_build_environment'" is intentionally not
used, as it should no longer be required when provisioning with Chef 11.
Bump Maven to 3.2.1
Do not try to discover eZ PEAR channel when installing PHPUnit.

The channel looks to be down now and is not required for installing
PHPUnit. We will anyway change the installation method of PHPUnit soon.
Fix memcached php extension's version to 2.1.0.

There are compilation issues with memcached-2.2.0 and precise.
Include travis_build_environment attributes in android-sdk.