RUBY-844 Allow alternate namespace for cursors
RUBY-844 remove attr_reader and clean up test
RUBY-844 Update cursor inspect string with namespace
Merge pull request #558 from estolfo/RUBY-844-ns-cursor

RUBY-844 Allow alternate namespace for cursors
RUBY-843 listCollections command can return a cursor
RUBY-843 listIndexes command can return a cursor
RUBY-843 Take ns into account and add cursor option to commands