Fix a tokenizer problem with dashes in the story description.

lib/saga/tokenizer.rb

@@ -59,7 +59,7 @@ def self.tokenize_story_attributes(input)
     end
 
     def self.tokenize_story(input)
-      parts = input.split('-')
+      parts = input.split(' - ')
       if parts.length > 1
         story = tokenize_story_attributes(parts[-1])
         story[:description] = parts[0..-2].join('-').strip

test/saga_parser_spec.rb

@@ -124,4 +124,12 @@ def parse_definition
     parser.document.definitions['Storage'].length.should == 1
     parser.document.definitions['Storage'].first[:title].should == 'Other'
   end
+
+  it "properly parses hard cases" do
+    parse_story_marker
+    parser.parse('As a member I would like the app to keep the information it got from Twitter up-to-date so that changes I make on Twitter get propagated to my listing.')
+
+    story = parser.document.stories[''].first
+    story[:description].should == 'As a member I would like the app to keep the information it got from Twitter up-to-date so that changes I make on Twitter get propagated to my listing.'
+  end
 end

test/saga_tokenizer_spec.rb

@@ -34,6 +34,12 @@ def each_case(path)
     end
   end
 
+  it "tokenizes hard stories" do
+    Saga::Tokenizer.tokenize_story('As a member I would like the app to keep the information it got from Twitter up-to-date so that changes I make on Twitter get propagated to my listing.').should == {
+      :description => 'As a member I would like the app to keep the information it got from Twitter up-to-date so that changes I make on Twitter get propagated to my listing.'
+    }
+  end
+
   it "tokenizes definition input" do
     each_case('definition') do |input, expected|
       Saga::Tokenizer.tokenize_definition(input).should == expected