Order-book

* Feature: changes to code and setup.py to enable compiling on windows
* Feature: add from_type/to_type kwargs to the to_dict methods, allowing for type conversion when creating the dictionary

* Bugfix: depth was incorrectly ignored when converting sorteddict to python dict

* Bugfix: truncate and max_depth not being passed from orderbook to sorteddict object correctly
* Feature: let checksum_format kwarg be set to None

* Update classifiers to indicate this projects only supports MacOS/Linux
* Bugfix: Using less than the minimum number of levels for a checksum with Kraken not raising error correctly
* Update: add del examples to test code

* Bugfix: Invalid deallocation of python object

* Feature: Add branch prediction hints around error handling code
* Bugfix: Fix regression from adding branch predictors
* Bugfix: Fix error corner case when iterating twice on an empty dataset
* Feature: Add contains function for membership test
* Bugfix: Fix issues around storing L3 data
* Feature: Enhance testing, add in L3 book test cases