Async support (#63)

* Added better Async support
* Fixed bug with the sync command when running multiple reports

Added support for Asynchronous requests. Can make interactive scripting more efficient from the programmer's perspective.

Merge branch 'better_tests' into python3_support

Merge pull request #48 from dancingcactus/classification_bug_3

Should fix #28 where a dminension with a classification was being bro…

Merge pull request #48 from dancingcactus/classification_bug_3

Should fix #28 where a dminension with a classification was being bro…

Bump version number.