Merge pull request #1 from bkovacevich/master

Add support for multiple task sets in parallel.
updated readme
new version
Update README.md
fix repo path
increase version number
better error messages
add flowTaskError
removed unnecessary require
increase version number
basic subflows. still need prereqs.
implementation for prereqs on subflows
added unit tests for subflows, allowed subflows to run on one single result
increase version number
add new argument null error and use it
add ability to use dot notation for properties
refactor
refactor
increase version number
fix file path for file