Issue #10 [Node] added capability for creating dump slaves and deleting nodes
[Node] some more line shortening in unit specs
Issue #10 [Node] fixed a minor problem with variable name
Issue #10 [Node] added test for #create_dump_slave
Issue #10 [Node] modified delete method to avoid unnecessary POST
Issue #10 [Node] added remaining tests for newly added features
Issue #10 [Node] added some functional tests for create_dump_slave and delete
Issue #10 [Node] fixed a minor problem with error reporting
Issue #10 [Node] added remaining functional tests
Issue #10 [Node] added documentation and fixed problem with mode
Merge pull request #15 from arangamani/more_functions_to_node

More functions to node