[CDF-353]: Added Dashboards._getParameterStore method and changed .setParameter/.getParameterValue/._isParameterInModel to use it.
Merge pull request #234 from gundisalwa/master

[CDF-353]: Added Dashboards._getParameterStore method and changed .setPa...
[CDF-353] Reverting Dashboards._isParameterInModel to implementation based on the Backbone model, since it was not passing tests.
Merge pull request #235 from gundisalwa/master

[CDF-353] Reverting Dashboards._isParameterInModel to implementation bas...
[CDF-338]: new cdf component - visualizationAPIComponent