rename 'CircleFrac' to 'Turn' (and retain CircleFrac as a deprecated synonym)
add a valid (though slightly odd) Monoid instance for Trail
D.Transform: re-export stuff from Diagrams.Core, to make it easier to find
D.Points: whitespace etc.
D.Points: some re-exports from D.Core
new module Diagrams.Names, to re-export name-related stuff from diagrams-core
D.Names: move 'named' and 'namePoint' here from -core
re-export D.Names from D.Prelude
D.Names: re-export SubMap & related functions from -core
D.Transform: organize exports, and re-export HasOrigin & friends
D.Align: formatting
D.Align: re-export Envelope and related things from -core
move Envelope re-exports to new module Diagrams.Envelope
new module D.Trace, for re-exporting some Trace-related things from -core
D.Combinators: re-export 'atop' from -core
D.Envelope: re-export 'envelope' and 'setEnvelope'
D.Trace: re-export 'trace' and 'setTrace'
D.Envelope: re-export some envelope-related functions from D.Combinators
D.Trace: re-export 'withTrace' from D.Combinators
new module D.Query for re-exporting Query-related things from -core