add helper functions to StructuredOutputMachine
fix notebook to follow agreed style
Merge pull request #1699 from hushell/develop

add helper functions to StructuredOutputMachine
fix 2 static analyssis warnings
fix further mistakes detected by static analyzer
update ipython notebook for structured output learning
fix copy & paste error
Merge pull request #1710 from hushell/develop

update ipython notebook for structured output learning
fix potential uninited variable issue
further warning fixes
use markdown style and links between readmes
removed debug outputs