Add basic support for custom fields
Add set_organization method to Board object to work with organizations
commit check
Fix lazy loading in Card
Inject request
Add get_boards method to Member object with organization support
Update trellolist.py
Added support to get subscription status for lists as well as subscribe/unsubscribe from lists
List, add, and delete stars.
add remove_member and add_member methods to Organization object
untested star implementation
Adds method to delete label from board