Merge pull request #130 from anodelman/make-gem

cut beaker 1.6.0 gem
(QA-777) Allow beaker to deploy a split PE on version 3.2

3.2 includes a large database schema change. Part of the schema
migration is to validate availability of free space. On split
configurations, the dashboard upgrader will ask the user to make sure
there is sufficient space on the database node. We need to answer
"yes" to this from Beaker.
Merge pull request #131 from branan/qa_777

(QA-777) Allow beaker to deploy a split PE on version 3.2
(maint) Use explicit path to rake when running PE console rake tasks

Bundler and/or rake gets confused when we aren't explicit.
(maint) Make the 'database' host available in 3.2 answers gen

Because answers gen does not have access to normal beaker context, the
special hosts need to be made available explicitly.
(maint) Add test for the 3.2 upgrade answers generation
Merge pull request #134 from branan/fix_32_answers_gen

(maint) Make the 'database' host available in 3.2 answers gen
Merge pull request #132 from branan/pe_rake_explicit_path

(maint) Use explicit path to rake when running PE console rake tasks
Merge pull request #135 from anodelman/make-gem

create beaker 1.6.1 gem
google cloud integration