Highlighting required fields

Signed off by: Daniel Alves <danpaulalves@gmail.com>
Created validator for compound metric configurations name and script fields

Signed off by: Heitor Reis <marcheing@gmail.com>
Compound metric configuration fields name and script are required

Signed off by: Heitor Reis <marcheing@gmail.com>
Fixed acceptance tests for new required fields

Signed off by: Heitor Reis <marcheing@gmail.com>
Unit tests for NameScriptPresenceValidator

Signed off by: Renan Fichberg <rfichberg@gmail.com>
Fixed Repository creation acceptance tests for blank fields

This is a bug introduced by the required fields modification

Signed off by: Renan Fichberg <rfichberg@gmail.com>
Merge pull request #146 from mezuro/highlight_required_fields

Highlight required fields