use networkx to build dependency graph and resolve execution order
build execution tree
added execution
renamed flowmanager to datamaker
Merge branch 'networkx' of github.com:tims/datamake into networkx
Merge branch 'master' of github.com:tims/datamake into networkx
Merge branch 'networkx' of github.com:tims/datamake into networkx
seperate tasks from artifacts and configuration
test definitions load
moar tests
resolve parameters using the graph not the execution order
resolve parameters using the graph not the execution order
more tests and set datamake script to use legacy
cleanup
Merge branch 'networkx'

Conflicts:
	setup.py
add MANIFEST.in