[BACKLOG-257]Allow database extra option defaults

Get default options from database type and display.
Only options of the current connection type should be added to the options panel.

http://jira.pentaho.com/browse/BACKLOG-257
[BACKLOG-257]Configuration of PDI JDBC

General UI enhancements:
    Apply default port 9080, hide database name field.
    Rename database type for suite conformity.
    Add webappname -> pentaho-di as default option

http://jira.pentaho.com/browse/BACKLOG-257