Some cocaine-tools tests has been added and/or fixed

 - removed deprecated tests
 - fixed command line arguments that equals with tags leading to undefined results
Chain futures idiom introduced

 - `cocaine.futures.chain` module introduced. It represents collection of chaining future classes and decorators to simplify work with them
 - AddApplicationToRunlistAction class implemented as an alternative to RunlistAddAppAction. It uses new future-chaining idiom and its code looks more cleaner and simpler
 - class RunlistAddAppAction is now deprecated. Use AddApplicationToRunlistAction instead
 - now console application usage of cocaine tools has a global timeout of 1 second. It is planned to make it as a program parameter
 - some examples of usage new chain futures idiom can be found in `examples/future_madness.py` file