parse query-string from root url correctly in tests
Merge pull request #52 from pedestal/fix-query-string

parse query-string from root url correctly in tests
Prepare 0.1.6 release
Start 0.1.7-SNAPSHOT development stream
Update CHANGELOG.md for 0.1.4, 0.1.5 and 0.1.6
Update CHANGELOG.md
begin work on new dataflow engine

Start by adding a topological sort for derive functions.
change internal order of derive tuples

Current order is: [:function :inputs :output]
build basic dataflow

Currently returns a new map with sorted derive functions.
get a very simple flow working

Add basic support for the transform and derive phase of a flow.
allow the use of wildcards in inputs

This implementation works but can be slow when more than one wildcard
is used.
ins has been changed to input-paths
explore the idea of a map which tracks changes
get tracking map working properly
clean up metadata on ascent
record changes in a separate map instead of metadata
record key removal
strip away associated TrackingMaps, only the top level contains changes
implement dataflow with the tracking map
add topo-sort test