More information during query executions

[dzmipt]

At the moment if a query is being executed from an editor tab, mouse pointer is change in the editor. Also it is possible to find that the editor is busy by active "Stop" icon in the toolbar.

We can put details into status of editor. The details could include:

• status of the connection - connected or not connect to a server
• message that a query is being running
• the query itself (obviously we can put only begining of the query it is long)
• time for last run query