Minor refactoring

Signed-off-by: Phan Le <ple@pivotallabs.com>
Only allow user to do read-only operation on service instances in suspended org.

[Finished #66904646]

Signed-off-by: Phan Le <ple@pivotallabs.com>
Can only read service bindings when org is suspended

[Finished #66904626]
Signed-off-by: Phan Le <ple@pivotallabs.com>