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Ignore-this: 4b406a4f5f4987dc4b523a386147ffbd

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darcs-hash:5177c10cf5c41ee59db09e34a51518f8b14c2844

Added initarg support for :ref type association slots
Fixed setf slot-value bug where old values were not overridden on M:1 slots
Significant bug fixing for adding/removing association pairs
Explicit association API addition
Allow association indices to be used by get-instances via map-inverted-index

Misc:
Fix a test that fails on postmodern due to assumptions about dup-btree value ordering

darcs-hash:01e7255fefd4a3cecc9d4984d7b664f6794e8a01

darcs-hash:49253e96ba1b40a0340e6a3d000e5e07e7276f72

darcs-hash:c8dfad90ee167dc77c6fb919ffa013240535960d

Fix config restart typo, add type specifiers to collection test, remove metaclass specification from dup-btree in bdb-collections

darcs-hash:badf7430de840f64d31cff62e37168303084b180

darcs-hash:950280ef856533cc67ee9fcebb2677b0775f5146

darcs-hash:06c3b25845443aab64a4873b3b097e378e9ea460

darcs-hash:d948976f4f7382f2c743516350b5f5cefa7212da

darcs-hash:68ece8668cdfd224564feb0e7e735a8afb74e7a2

darcs-hash:88193f0a7a8e4b376efae8e195fd1d46b369f557

darcs-hash:582fc0877e360c28700f34b04292a59361e38e4c

Although this is all green, it is certainly not perfect.
I am checking in it in hopes it will help the postmodern
guys, though in hindsight I doubt it will, much. I'm also
starting to think the cl-sql backend should be deprecated.

darcs-hash:d772793b67b2439618d3a3680423105dc0ef2594

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darcs-hash:bacb71f63029ebf51bb95de7987ca204f6c40caa

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darcs-hash:5bc4da607646a46102908a1b5c2e9881adb0a2c1

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darcs-hash:2b1e4c45d9f2146d239010583f797c88e399fa09

Features:
Partially working support for change-class, redefine-class, update-instance-*
Support for store synchronization and evolution of db instances and storage
Lots of little integration issues and refactoring

Bugs:
Added unbound slot edits
Fixed little bugs hiding in serializer, btree implementation, btree mapping functions,
Fixed some little bugs hiding in bdb
Added tests for dup-btrees and to test for btree bugs from before

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Hierarchical class indexing
Class schemas
Duplicate btrees
Lazy deserialization support

darcs-hash:bf9748ff7e279c034f7ef93b11bd9def688dc7d6

darcs-hash:085ec302cf8ebbcd2bc53d41ee4e978018cd3cb7