[Blueprint] Fixed a bug in the default blueprint stylesheet that caused invalid body selectors to be generated.

frameworks/blueprint/templates/project/screen.sass

@@ -11,14 +11,14 @@
 // +blueprint
 
 //Recommended Blueprint configuration with scoping and semantic layout:
++blueprint-typography("body.bp")
++blueprint-scaffolding("body.bp")
 body.bp
-  +blueprint-typography
   +blueprint-utilities
   +blueprint-debug
   +blueprint-interaction
   // Remove the scaffolding when you're ready to start doing visual design.
   // Or leave it in if you're happy with how blueprint looks out-of-the-box
-  +blueprint-scaffolding
 form.bp
   +blueprint-form