Dependencies: Update to crate_ruby-0.2.0

Author: amotl

activerecord-crate-adapter.gemspec

@@ -50,5 +50,5 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency('activerecord', '~> 4.1.0')
   spec.add_dependency('arel', '>= 5.0.0')
-  spec.add_dependency('crate_ruby', '~> 0.0.7')
+  spec.add_dependency('crate_ruby', '~> 0.2.0')
 end