Update postgresql_adapter.rb

New ThinkingSphinx version 3.0> ignore option use_64_bit in thinking-sphinx.yml for PostgreSQL. sql_range_query: ERROR:  integer out of range (use_64_bit)
Update Appraisal to use Rails 4.0.0.rc1
Encoding comments for MRI 1.9
Deletion in delta updates uses connection pool, spec matches.
ActiveRecord 4.0 has renamed active_record to base_klass.
Ignore preloaded indices for unit test.
Fixing deprecated default_scope syntax.
change #cast_to_timestamp, add test
Merge pull request #516 from arion/patch-1

Error in postgresql_adapter.rb (integer out of range - use_64_bit)
Allow INDEX_ONLY=true on Capistrano tasks

A quick and dirty way to forward the INDEX_ONLY=true env option from Capistrano tasks to the Rake tasks that run on the servers.
Merge pull request #520 from epidemian/patch-1

Allow INDEX_ONLY=true on Capistrano tasks
More HISTORY updates.
Updating Riddle dependency.
3.0.3
Ignore the generated gh-pages site.
Facet searches can now be called on scopes.
Default Sphinx scopes are now applied to facet searches.
Noting the previous two commits in HISTORY.
Copy and paste error, picked up by @epidemian.
Gather database connection details from ActiveRecord.

If the connection is changed within an index definition (say, between defining multiple sources), the model's connection doesn't reflect that change.