add order_by_function field query
move direction parameter last for consistency
Let Rails handle defaults for find_in_batches

Rails offers support for custom primary_keys, e.g. UUID.
The start option default always expected an integer PK,
which causes find_in_batches to crash.
Support Sunspot.batch on the sub_session_proxy.
Require Forwardable in sunspot/adapters.
Merge branch 'master' of github.com:sunspot/sunspot
Merge branch 'master' of github.com:sunspot/sunspot
Merge pull request #373 from jassa/fix-find_in_batches

Let Rails handle defaults for custom primary keys
Merge pull request #376 from strika/master

 Require Forwardable in sunspot/adapters.
Added link to stack overflow in readme. Closes #458.
Calling facets will return empty array on Session Proxy Stub
Added note to README.md regarding threading and ThreadLocalSessionProxy.
holy WIP getting close on this
getting close...I think?
moved to own spec
Merge pull request #466 from burningpony/master

Calling facets will return empty array on Session Proxy Stub
Remove rake reindex prompt.
Merge pull request #468 from austinmills/master

Added note to README.md regarding threading and ThreadLocalSessionProxy.
Merge pull request #486 from rywall/no-more-reindex-prompt

Remove rake reindex prompt.
Switch to edismax.