added another callback to example
[AESH-76]
fixed cursor position when resetting prompt
[AESH-77]
leading spaces will now be trimmed before calling complete and
the buffer object in ConsoleOutput
[AESH-75]
prompt is now removed from Console
[AESH-70]
added stop to History
removed writing to history file on jvm shutdown, it will now
be triggered from Console.stop()
[AESH-78]
aliases will now be writte to file when aesh exits