Relax mimemagic version constraint to ~> 0.3.0

paperclip.gemspec

@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
   s.add_dependency('activesupport', '>= 3.2.0')
   s.add_dependency('cocaine', '~> 0.5.5')
   s.add_dependency('mime-types')
-  s.add_dependency('mimemagic', '0.3.0')
+  s.add_dependency('mimemagic', '~> 0.3.0')
 
   s.add_development_dependency('activerecord', '>= 3.2.0')
   s.add_development_dependency('shoulda')