added missing CONST object
refactor model editor from react to angular

- fixes #861 - not able to delete properties

- fixes #860 - not able to change property types
Merge pull request #862 from strongloop/fix/221-null-datasource-values

Fix/221 null datasource values
fix incorrect links
fix model definition name reference
Merge pull request #870 from strongloop/fix/869-prolem-renming-models

fix model definition name reference
Merge pull request #864 from strongloop/fix/incorrect-hyperlinks

fix incorrect links
Merge pull request #863 from strongloop/hotfix/fix-arc-non-module-constants

added missing CONST object
fix model definition name reference

- validation script had reference to wrong model name property
Merge pull request #873 from strongloop/fix/861-problem-with-validation

fix model definition name reference
check to make sure app is running before polling

make adjustments for server down polling situation
Merge pull request #874 from strongloop/fix/868/-stop-polling-when-stopped

check to make sure app is running before polling
trigger build
Merge pull request #875 from strongloop/fix/trigger-build

trigger build