Implemented VariableListController to replace LinkableObjectList and
LinkableObjectGrid.
small gui change
fixed null pointer error
Added feature to allow rserve root access if a special file is created
under weave-config called allow-rserve-root-access.
Merge branch 'master' of https://github.com/IVPR/Weave into foo

Conflicts:
	WeaveUI/src/weave/ui/ColumnListComponent.mxml
topics shows only after data available. added Other Topics as dimension to rad viz