Fixed md5 reference in file cache
Fixed name clash in test models
Better comments for test models
Fixed local_get with unhashable args
Без запятой вместо ожидаемого tuple получаем строку.
Соответственно вместо одного атрибута `value` encode_object
будет пытаться добыть из RawValue атрибуты ['v', 'a', 'l', 'u', 'e']
Merge pull request #40 from Yuego/master

Merged: Fixed key generation for RawQuery
Поддержка ExpressionNode и F-выражений
Merge pull request #42 from Yuego/f/bitwise2

Support F-expressions
Better SQLEvaluator cache key calc

Affects how QuerySets with F-expressions is cached
Updated CHANGELOG
Different versions of
Model migration support reworked after review
Remove obsolete import
Merge pull request #43 from ttyS15/master

Defend cache from model changes
Cleaned up "model change defense" pull request
Optimized and corrected stamp_fields()

Long strings could be time consuming to repeatedly hash.

And no point in sorting fields, except for messing with django-pickling:
reordering fields with no other changes will brake its pickles.
Upped version to 1.0.0 and dev status to stable
Docs for file cache
Test for #44
Marked test_44 as expected failure