Fix gem summary and description

Author: mrcasals

date_validator.gemspec

@@ -9,8 +9,8 @@ Gem::Specification.new do |s|
   s.email       = ["[email protected]"]
   s.homepage    = "http://github.com/codegram/date_validator"
   s.license     = "MIT"
-  s.summary     = %q{A simple, ORM agnostic, Ruby 1.9 compatible date validator for Rails 3+, based on ActiveModel.}
-  s.description = %q{A simple, ORM agnostic, Ruby 1.9 compatible date validator for Rails 3+, based on ActiveModel. Currently supporting :after, :before, :after_or_equal_to and :before_or_equal_to options.}
+  s.summary     = %q{A simple, ORM agnostic, Ruby >=2.2 compatible date validator for Rails 3+, based on ActiveModel.}
+  s.description = %q{A simple, ORM agnostic, Ruby >=2.2 compatible date validator for Rails 3+, based on ActiveModel. Currently supporting :after, :before, :after_or_equal_to and :before_or_equal_to options.}
 
   s.rubyforge_project = "date_validator"