Fix Strainerfile

Change-Id: I1e7b6e99c8042a4d7f653ce6c82b7174053a69cb
Implements: blueprint per-repo-tests
Update Gemfile and remove lock

berkshelf 2.0.18 needed for Supermarket
Gem lock file not useful in master branch

Change-Id: Idea049df7aedda21fcf50a569a29c64a30ce076a
Fix fauxhai platform versions for suse and redhat

Change-Id: Idc50fa0335b373e2d43d783d44d2888a633002da
Partial-Bug: #1344199
Add format documentation to Strainer file for better output

Change-Id: Idac91944f62d9bc888290ccf1026b0d7d9de62b7
Setting up repo for master Juno Branch

* Update metadata version
* Removing Strainer file
* Adding Gemfile.lock to .gitignore
* Updating Gems
  * chef (11.12.0)
  * chefspec (4.0.0)
  * rspec (3.0.0)

Change-Id: I8aefcb9bba56f7413f07209c0f658dc96da9f375
Partial-Bug: 1349865
Updated berkshelf to 3.1.5

Updated berkshelf from 2.0.18 to 3.1.5 in Gemfile and added supermarket source to Berksfile

Change-Id: I0a1426dcebfcc547d7d8bb0b4ba703b69255c727
Implements: blueprint update-berkshelf
Update Testing.md to factor out Strainer

* remove refs to Strainer
* add steps for testing
* remove knife test as it's not used in gates anymore
* remove test bash script

Change-Id: If12153cff01ab4fad3b3a014c3be95437a2f9dfc
Partial-Bug: #1350470