Merge tag '0.0.9' into develop

Support for SQL Server
GraphNodifier: don't pass nil as first arg to Node
Merge branch 'master' into develop
spec.md: update with define/recall
implementation_notes: add this doc to capture non-spec info
Recall: refactor #types
Define/Recall: avoid timing issue when drawing graphs
Node: avoid unnecessary aliasing of columns
CLI: fix call to graph_it
PassThru: explicitly use children, not values for #types
Add value_as_* columns and value_as_numeric-related nodes
implementation_notes.md: more bad ideas
spec.md: minor tweaks before release
ConceptQL Spec: update for 0.1.0
Version: bump to 0.1.0
Merge branch 'release/0.1.0'