Fix spree_core dependency.

Author: JDutil

spree_editor.gemspec

@@ -17,6 +17,6 @@ Gem::Specification.new do |s|
   s.requirements << 'none'
 
   s.add_dependency('tinymce-rails', '>= 3.4.7.0.1')
-  s.add_dependency('spree_core', '>= 1.0.0rc2')
+  s.add_dependency('spree_core', '>= 1.0.0.rc2')
 
 end