Prototype implementation of Tool abstraction
Adding CommandBuilder API to ExternalTool
Another stab at ExecutionService Tasks
Adding scheduling
Fixed CommandTool to spawn processes
code cleanup and fired event after basic tools are registered
add event class
deleted commented code
Renamed ExecutionInteraction back to ProcessInteraction
Moved workingDir, isDaemon and env methods to CommandTool
Updated readme
Asciidoc syntax fix
Another asciidoc update
Minor formatting fixes
added CountDownWatch versin to until and awaitAtMost methods for Execution
Fixed TextAnswer implementation

* Answers were removed from API/impl
* ProcessDetails were replaced with ProcessResult and simplified
* ConsumeProcessOutputTask encapsulates Answers and ProcessInteraction
* ProcessInteractionBuilder was made more fluent API safe
Removed test output
Updated readme
Another minor readme fix
Fixed Spacelift registration