added a method to return the current size of the history
added the concept of an "active" module which controls the current prompt display
modified the default prompt for the "main" module
added a new command to switch the "active" module
added ScalaDoc
moved SimpleEndPoint class into the EndPoint object
added the "use" command to the command chain
renamed the subsystems package to modules
moved Zookeeper working directory variable into the Zookeeper Module
Intellij Idea initiated code clean-up
fixed issue with failure to process Option and Try monads
renamed the Built-in module to Core
added new examples
updated commands to include a reference to its parent module
updated commands to include a reference to its parent module
added direct SL4J dependency bindings
removed unnecessary SBT commands
clean up
changed access to private
changed access to private