Updates Google App Engine SDKs to 1.9.5

Updates Google App Engine SDKs for Python/PHP and Go
to version 1.9.5
Added Google App Engine Java part.

Includes the Google App Engine Java SDK autopart,
to allow Java developers to write, test and deploy
Java apps to Google App Engine.

This part is based on the Google App Engine part.
Use package version when moving extracted folder.
Added Elasticbeanstalk package
Added the Google Cloud SDK part.

Cloud SDK allows users of the Google Cloud Platform to
easily manage Compute Engine, Cloud Storage, Bigquery
and App Engine from a simple CLI interface.

This part disables usage reporting, and users can optin
for this after installation.
Makes google-cloud-sdk/bin part of PATH.

This allows more tools installed with gcloud, such
as the dev_appserver.py from pkg-go, to be available
to the user.
Added Copyright notice to Google Cloud SDK package.
Symlink to `eb` executable from `.parts/bin`.

This way the tool will be available immediately for use. No need to
restart shell session.
Merge branch 'pr/144'
Added category field to missing packages.
Added --json option to search, list and status commands.
Merge pull request #138 from nitrous-io/machine-readable-output

Support for machine-readable outputs
updated php54 to 5.4.29. php54 now uses correct config file path
Merge pull request #142 from ronoaldo/appengine-updates

Updates Google App Engine SDKs to 1.9.5
fixed google app engine source installs
Merge pull request #143 from ronoaldo/appengine-java

Added Google App Engine Java part.
Updated Heroku Toolbelt to 3.8.2
Merge pull request #148 from nitrous-io/heroku-toolbelt-update

Updated Heroku Toolbelt to 3.8.2
Update ghc to 7.8.2, and cabal-install to 1.20.0.2
Updated Elixir from v0.13.1 to 0.14.1