Merge pull request #812 from bugzmanov/fb-remoting

[RJA-1669][feature] introducing metrics first steps
Merge pull request #813 from bugzmanov/fb-remoting

[RJA-xxx] fixing failed build
[RJA-1785] [fix] - Overlay to block the page while request is in progress
[RJA-1779][feature] - Show rolling wheel when workflow is starting
Merge pull request #814 from rsvato/agents

[RJA-1785] [fix] - Overlay to block the page while request is in progress
[RJA-1792][fix]: email notification plugin should not send authentication in case of username is empty.
[DOC-XXX][fix] - Readonly with access to config may post to /projects/x/envs
Merge pull request #815 from ddurnev/agents

[RJA-1792][fix]: email notification plugin should not send authentication
Merge pull request #816 from rsvato/agents

[DOC-XXX][fix] - Readonly with access to config may post to /projects/x/...
[DOC-XXX][fix] - Access to partial call for readonly
Merge pull request #817 from rsvato/agents

[DOC-XXX][fix] - Access to partial call for readonly
[RJA-645][fix] envConfigId to be mandatory parameter for workflow definitions