Bump to 1.0.0 for use in prod environments
Fix task description for `deploy:update_webapps`
Add `deploy:validate` task to double-check needed vars are present
Merge branch 'refs/heads/jeff/add-validation'

* refs/heads/jeff/add-validation:
  Add `deploy:validate` task to double-check needed vars are present
Rename CHANGELOG to be correct
Add release notes for v1.0.0
Bump to 1.1.0