Syn

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- Fixed setup.py for wheel

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- Added display() and rst() methods to Type classes (syn.type.a)
- Added class member/invocation auto-documentation
- Added make_hashable functionality to Base
- Added syn.sets (syn.sets.b)

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- Moved check_idempotence to syn.base.b.examine

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- Added context management utilities to base_utils
- Moved metaclass data population code to base.b.meta
- Added rudimentary init functionality to base.a.Attr and base.a.Base
- Added register_subclass functionality
- Refactored (improved) internal hook processing
- Added setstate_hook functionality
- Added _aliases functionality
- Added base.b.Base.istr()
- Added syn.tree functionality (syn.tree.b)
- Added syn.type.This type for recursive type definitions

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- Added conversion classmethods to Base:
- from_object()
- from_mapping()
- from_sequence()
- Added _data member to Base for metaclass-populated values
- Fixed bug in _seq_opts propagation
- Added _seq_opts.metaclass_lookup functionality
- Changed init_hooks and coerce_hooks over to metaclass_lookup (allows subclasses to override hooks)
- Added create_hook functionality
- Added hook decorators:
- init_hook
- coerce_hook
- create_hook
- Removed 3.3 as a supported version

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- Added init_hooks to base.Base
- Refactored sequence-based options to be defined in Base._seq_opts
- Added Type extensions:
- Hashable
- Tuple
- Added conf.vars
- Added coerce_hooks to base.Base