* Commit initial change for settimeout/setinterval
* Add initial tests for jail setTimeout/setInterval
* Add ottoext dependency
* Add fetch jail test with function
* Add dependencies of fetch from ottoext
* Refactor with regards to PR review
* Refactor with regards to PR review
* Fix syntax errors
* Fix missing return statement
- node: signals and node reset, fixes#152
- tests update (testify is used)
- node manager refactored, race conditions fixed
- node wrapper has been removed, we rely on go-ethereum node now
- tx queue refactored
- jail refactored
- backend and API introduced