Start of cloud watch plugin.
Merge branch 'dev' into features/cloudwatch-plugins
Working cloud watch input.
Start of cloud watch tests.
Basic input test working with all the mocks arranged in a row.
Spelling.
Merge branch 'dev' into features/cloudwatch-plugins

Conflicts:
	testsupport/mock_pipeline.go
Update input mocks for changes in dev.
Fix bug and add test for additional field values.
Add cloud watch input docs and update existing docs for TOML format.
Merge pull request #13 from mozilla-services/features/cloudwatch-plugins

Features/cloudwatch plugins