dropping with dependencies; explicit binding of graph to storage; total rethinking of aliases with option
various small errors and syntax improvements found by linting
internalize NSM in Mapping. Make mapping a clause
force drop, esp. in tests.
internalize class_registry in alias_set
internalize alias_manager in graphmap
internalize alias_set in quadmaps and below
small error
simplify relationship between graph and storage. calculate aliases at moment of binding to graphmap. Hence cannot happen at graphmap creation.
move define_alias_set stage to quadmap binding
Redefine everything as clauses
Make it work. Name qmps, define compound and wrapped statements, storage of import_clause, some optimizations.
use drop clause
delete old-style virt_def
compilation hack now done with monkey-patching
allow unicode
adjustments: alias names, wrap alter storage, repeated qmps