Lendingclub

* Upcase the license file name to LICENSE.txt
* Doc updates

* Let FilterByLoanID accept list of IDs
* Add sphinx API documentation
* Default redirects to True for HTTP requests
* Add do_not_clear_staging parameter back to build_portfolio

* Batch order bug fixes
+ Fix bugs with staging orders. List of IDs had to be converted to strings before joining (https://github.com/jgillick/LendingClub/issues/1)
+ Add support for passing a list of IDs to batch_add, instead of list of dicts
+ Add loan_id validation to Filter and FilterByLoanID
+ More type checking and assertions
+ More unittests
+ More examples in README

* Bug fixes
* Added SavedFilters
* More note search criteria

* Initial port from LendingClubAutoInvestor
* Full unit testing
* First end-to-end live investment made.
* More testing is required to ensure stability.