There was an issue in combination of `solidity.formatters.formatInputInt` and `utils.toTwosComplement` where the value was rounded *after* performing the toTwosComplement. This caused negative floats to round _UP_ instead of rounding _DOWN_. I'm not sure if this is a bug or intentional, but from reading the code it appears to be intended to be rounded down.
Added simple unit test to demonstrate the behavior
* started contract
* prepared the contract functions
* added deploy function
* added event emitter funcitons
* eventified promise
* added encodeABI
* added optional bluebird
* improved the param finder
* added call, transact and estimateGas
* allow siganture for encodeABI
* working on events
* added event listeners to contracts
* working on contract events
* changed on message to on data
* working on decoding events
* switched deploy check to subscriptions
* removed all event functions, keep only contract.on
* added subscription stuff
* fixed substractions formatters
* added log decoding
* added all events
* fixed events
* added new method calling structure
* added mined event for send tx
* worked on getPastEvents, still WIP
* working on tests
* added once method
* made options object in function execution optional
* finished pastEvents
* added request function for batch processing to contract methods
* fixed contract tests
* finished proting tests
* test provider isolatiton issues
* commented out test to prevent unsolvable issue for now
* changed deploy resolve
* deactivate encodeABI
* improved fake provider, with stacking validation and results
* added fromBlock test
* added tests for internal methods of the contract object
