• Temporarily remove CloudflareProvider tests; it is down and breaking the tests. (797abb7)
• Better error reporting for Fragments. (7dcefcb)
• Fixed Contract filter unsubscribing. (2eb3823, 39c78f3)
• Fixed WebSocketProvider filter events. (#784; 69f7077)
• Added bitwise operations to BigNumber. (#781; 7498c18, 284771e)