update version_spec to reflect the current API version

Author: Jesse Emond

spec/open_weather/version_spec.rb

@@ -1,5 +1,5 @@
 describe 'Version' do
-  it 'should be version 0.10.0' do
-    OpenWeather::VERSION.should == '0.10.0'
+  it 'should be version 0.11.0' do
+    OpenWeather::VERSION.should == '0.11.0'
   end
 end