bumping sinatra/rack deps

noah.gemspec

@@ -24,12 +24,12 @@ Gem::Specification.new do |s|
   s.add_dependency("eventmachine", "1.0.0.beta.4")
   s.add_dependency("em-http-request", "1.0.0.beta.4")
   s.add_dependency("cookiejar")
-  s.add_dependency("redis", "= 2.2.0")
+  s.add_dependency("redis", "~> 2.2")
   s.add_dependency("nest", "= 1.1.0")
-  s.add_dependency("rack", "= 1.3.4")
-  s.add_dependency("tilt", "= 1.3.3")
-  s.add_dependency("sinatra", "= 1.3.1")
-  s.add_dependency("rack-protection", "= 1.1.4")
+  s.add_dependency("rack", "~> 1.4")
+  s.add_dependency("tilt", "~> 1.3")
+  s.add_dependency("sinatra", "~> 1.3")
+  s.add_dependency("rack-protection", "~> 1.2")
   s.add_dependency("ohm", "= 0.1.3")
   s.add_dependency("ohm-contrib", "= 0.1.1")
   s.add_dependency("haml", "= 3.0.25")