fixed small typo in conflict handler view
Merge pull request #24 from iaga84/feature/doesnotexist_typo

fixed small typo in conflict handler view
removes SANITY_CHECK and force nowait=True in select_for_update
simplfied concurrent updates handling.

Now CONCURRENCY_CALLBACK is always invoked, the default implementation raises RecordModifiedError
ops... restored NOWAIT for mysql
work in progress
work in progress
protocol2 stable, 53% coverage
add new protocol for django 1.6.

the new protocol fully implements 'optimistick lock' without locking the record.
The old protocol (using select_for_update) is stille used for django < 1.6
fixes tests.settings database name
changed default value
updates django versions (Makefile/tox.ini)
updates test to pass mysql
improved tests
updates docs
updated CHANGES and README
test configuration
fixes demoproject
fixes demoproject
let the tests pass