Fix failing specs

lib/audited/auditor.rb

@@ -157,7 +157,7 @@ def revisions(from_version = 1)
       end
 
       def has_version?(version)
-        audits.loaded? ? audits.any? { |audit| audit.version >= from_version } : audits.from_version(from_version).exists?
+        audits.loaded? ? audits.any? { |audit| audit.version >= version } : audits.from_version(version).exists?
       end
 
       # Get a specific revision specified by the version number, or +:previous+
@@ -170,7 +170,7 @@ def revision(version)
 
       # Find the oldest revision recorded prior to the date/time provided.
       def revision_at(date_or_time)
-        targeted_audits = audits.loaded? ? audits.filter { |audit| audit.created_at <= date_or_time }.sort_by(&:version) : audits.up_until(date_or_time)
+        targeted_audits = audits.loaded? ? audits.select { |audit| audit.created_at <= date_or_time }.sort_by(&:version) : audits.up_until(date_or_time)
         revision_with Audited.audit_class.reconstruct_attributes(targeted_audits) unless targeted_audits.empty?
       end
 
@@ -332,7 +332,7 @@ def audits_to(version = nil)
           end
         end
 
-        audits.loaded? ? audits.filter { |audit| audit.version <= version }.sort_by(&:version) : audits.to_version(version)
+        audits.loaded? ? audits.select { |audit| audit.version <= version }.sort_by(&:version) : audits.to_version(version)
       end
 
       def audit_create