Ransack release 1.3.0 for Rails 3, 4, and 4.1

Additions since Ransack version 1.2.3:

• search scopes by popular demand
• JOINS merging
• OR grouping on base search
• authorizations for attributes, associations and scopes
• improved boolean predicates’ handling of false values
• allow configuring to raise on or ignore unknown search conditions
• allow passing blank values to search without crash
• wildcard escaping compatibility for SQL Server databases
• various I18n translations