[#832] Remove FormAlchemy definitely

This includes, apart from the library requirement, the field_types module,
which has been unused for a very long time, and some unused converters
as well.
[#1457] Split test
Set the Recline dataset queryState value directly to avoid unnecessary API calls #2009
Merge pull request #2010 from aliceh75/2009-recline-unneeded-queries

Remove redundant API call in Recline grid preview
Merge pull request #832 from ckan/832-get-rid-of-formalchemy

Get rid of the last remnants of FormAlchemy
Fix typo in log message.
Merge pull request #1457 from ckan/1457-super-important-fix

Fix incompatible test in new_tests/logic/action/test_get.py