CORE: changed workbench_moderation version / commented-out workbench_moderation depedency, added rules

changed to workbench_moderation version which has features.

## Ready State: Yes

This pull request is related to the following JIRA tickets:

https://imagex.atlassian.net/browse/LDC-115
https://imagex.atlassian.net/browse/LDC-125

## Requirements & Dependencies
no new dependencies
## Deployment Instructions

*Merge Code

## Usage/Test Instructions
imagex_workbench should not install 
rules should be enabled
version of workbench_moderation should be: 1.3+6-dev