UI (HTML) Code Review reveals many changes required

[rajiff]

• Many places
  tag is used, it should be avoided
• Please keep ARIA label, so that warnings can be avoided
• use $log instead of console.log
• In Data model definition page, each attribute has edit button, please evaluate it for better user-experience
• for md-option, please consider not using ng-repeat, try using ng-options instead (https://docs.angularjs.org/api/ng/directive/ngOptions)