support terminateCondition for Tasks

catch two more raw eval calls

Fixes for #13 and #19.

convert to es6 modules

remove instanceof checks temporarily

Allow decision candidates and arguments to have dynamic captions and descriptions

removed coffeescript from the toolchain

change to result_of function

Add Action Task class

prevent dashes in component names

use coffeelint and change event trigger behaviour - tasks with event triggers now respect pre-conditions and optional attribute

updates to defaultValue behaviour and serialisation

added caption and captions functions for expressions

a fix for collecting data from data definitions attached to cyclic tasks

includes fix to handle nested triggers

use mkdocs for building documentation and focus on tidying up expression semantics

rollup of bug fixes