Introducing a new yard tag (@effects)
Server-side effects in compute, 1st pass
Fixing abbrevs
Server-side effects in network, 1st pass
Server-side effects in os_tpl
Server-side effects in resource_tpl
Server-side effects in storage, 1st pass
Server-side effects in ec2_credentials_helper
Server-side effects in aws_connect_helper
Server-side effects in compute

- based on compute_delete_helper
Server-side effects in compute

- based on compute_network_helper
Server-side effects in network

- based on network_create_helper
Server-side effects in network

- based on network_parse_helper
Server-side effects in storage

- based on storage_action_helper
Polishing @effects tags

- Fixing issues found in pull request review
Merge pull request #52 from sustr4/docs

[EC2] Backend docs with the 'effects' tag