provide ability to index specific documents
Don't call array_to_string because it can't be indexed.

Instead, use || to join the column expressions together.
test having specific multisearchable records
Merge pull request #62 from rounders/conditional-indexing

provide ability to index specific documents
Fix spacing
Simplify multisearchable_spec
PgSearch#multisearchable uses :if syntax

Much like how callbacks and validations work.

See https://github.com/Casecommons/pg_search/pull/62
Rebuilder honors :if on multisearchable models

Add unit test coverage to Rebuilder
Add documentation for multisearchable conditional
Support both :unless and :if for conditionals

Reorganize and simplify searchable_spec
Add pry to development gems
VERSION 0.5.6
Scope class has been removed so do not load it.
Merge pull request #66 from peter-murach/master

Remove autoloading of scope class.
Add warning about incorrect usage of :if/:unless in .multisearchable

Related to https://github.com/Casecommons/pg_search/issues/64
VERSION 0.5.7
added SCHEMA option to pg_search:multisearch:rebuild rake task, to allow optionally specifying the Postgresql schema to perform rebuilding in
modified postgres schema argument to be passed in the format [Entity,1] to rebuilding rake task
added documentation for schema specification in rebuild rake task
Merge pull request #69 from victor-github/master

Specify which Postsgresql schema to peform the index rebuilding in