Merge tag '0.1.0' into develop

use environments/t3stacks for default attributes

* tag '0.1.0':
  .version 0.1.0
berks, skip private group
version 0.1.1
Merge branch 'release/0.1.1'

* release/0.1.1:
  version 0.1.1
  berks, skip private group