Merge commit '717c084bdc1a8fbeb1025a5655a760da84259d64' as 'External/RXCollections'
Merge commit '4b77cf27a654cae5816871f30fde7f7a1c9fa78f' into develop
Merge commit 'ba646bc676f4d4fcefd92ff579b9c37c198aff4b' into develop
Merge commit 'be1e0c329461ff004ababf431cd7542de105d255' into develop
RXCollections/Lagrangian cleanliness.
Merge commit '47f0e46aeed7e4fe2214d707433f936d82e18d62' into develop
Merge commit 'b056fcf4737d899afc6eb1f0eb2fa6823d2fdb65' into feature/goodbye-ocunit
Merge commit 'c79612e1a7f1c706fd7fb5239a1c3adad41c7534' into feature/variadic-nodes
Merge commit '4555c3b0fe23e97b91f022a7d0ae1e1c98da7a7e' into feature/variadic-nodes
Node controllers can describe connection anchors by location.
Validate the project settings.
Merge RXCollections in and update tests for Lagrangian.
Merge commit 'ffbc42886dc2f51749699d820c33f88c083fa4aa' into 2d-graph-contexts
Fix running tests in apps.

Merge branch 'run-concise-tests-in-mac-apps' into feature/concision

Conflicts:
	Lagrangian/L3TestRunner.h
	Lagrangian/L3TestRunner.m