message: use unlimited to show if the field is null / with no limit.
diff: @@ -75,7 +75,7 @@ class Project extends React.Component {
  <div className='field-wrapper envlimit'>
  <div>
  <label>Non-Production environments in use</label>
  - <div className='field'>{this.state.developEnvironmentCount} of {this.props.project.developmentEnvironmentsLimit} </div>
  + <div className='field'>{this.state.developEnvironmentCount} of {R.defaultTo('unlimited', this.props.project.developmentEnvironmentsLimit)}</div>
  </div>
  </div>
  </div>
  