* Spark features are enabled
* Fixed as PR comments
* minor change
* PR comments fixed
* minor fix
* change constant name to avoid conflicts with sqlopsextension
* sqlContext to context
* Changed tab name to SQL Server Big Data Cluster
* Added isCluster to ContextProvider to control display big data cluster dashboard tab
Ported New/open Notebook code to mssql extension and enable them in dashboard
* Fixed tslint
* Added data service context menu: file related operations. All new files are ported from SqlOpsStudio. Will remove these functionality from SqlOpsStudio.
* Used the existing constant hadoopKnoxEndpointName
* Rename nodeType name from hdfs to bdc. So we can have file context menu in both mssql and SqlOpsStudio. Need to add "Create External Table from CSV" support for bdc nodeType
* Rename bdc to mssqlcluster
* Added Unified connection support
* Use generic way to do expandNode.
Cleanup the ported code and removed unreference code. Added as needed later.
Resolved PR comments.
* Minor fixes and removed timer for all expanders for now. If any providers can't response, the tree node will spin and wait. We may improve later.
* Change handSessionClose to not thenable.
Added a node to OE to show error message instead of reject. So we could show partial expanded result if get any.
Resolve PR comments
* Minor fixes of PR comments
