Removed some dead code
Removed indent block as it's now a handlebars helper
Extracted renderering context maker to another module for clarity
Bugfix: 'not implemented error' should be displayed in scenarios
or if there is a step inside another statement (ifthen / while)
DO not use anymore has_step? from Zest::Nodes::Actionword (should be deleted)
Do not use has_parameter? from Zest::Nodes::Item
Added missing tests for render_context_maker
Removed fugly 'be_falsey'
Removed some code from noes that was only used for rendering