added more_features option to define new feature templates on the fly
updated openhab.cfg to reflect new more_features option for the
insteonplm binding
fixed race condition in insteonplm originally submitted as pull request #1706 by cfrede001
Merge branch 'insteonplm' of /home/pfrommer/Documents/openhab into insteonplm
Merge pull request #1704 from berndpfrommer/insteonplm

[InsteonPLM binding] ability to easily add device features, fixed race conditions