Adds suport for variadic get_all on the server.
Adds variadic get_all to the python driver.
Makes tests for getAll pass.
adds variatic get all to JS driver
enable variadic get all JS tests
fix syntax error in JS getAll test
Make get_all() illegal.
Adds tests for indexless get_all.
Adds an arity test.
Merge branch 'next' into merge_br