[Blueprint] Clean up some comments in the blueprint templates.

frameworks/blueprint/templates/project/ie.sass

@@ -1,7 +1,7 @@
 @import blueprint
 
 // To generate css equivalent to the blueprint css but with your configuration applied, uncomment:
-// +blueprint-ie
+// @include blueprint-ie
 
 //Recommended Blueprint configuration with scoping and semantic layout:
 body.bp

frameworks/blueprint/templates/project/print.sass

@@ -1,7 +1,7 @@
 @import blueprint
 
 // To generate css equivalent to the blueprint css but with your configuration applied, uncomment:
-// +blueprint-print
+// @include blueprint-print
 
 //Recommended Blueprint configuration with scoping and semantic layout:
 body.bp

frameworks/blueprint/templates/project/screen.sass

@@ -7,10 +7,13 @@
 // Import the non-default scaffolding module.
 @import blueprint/scaffolding
 
-// To generate css equivalent to the blueprint css but with your configuration applied, uncomment:
-// +blueprint
+// To generate css equivalent to the blueprint css but with your
+// configuration applied, uncomment:
+// @include blueprint
 
-//Recommended Blueprint configuration with scoping and semantic layout:
+// But Compass recommends that you scope your blueprint styles
+// So that you can better control what pages use blueprint
+// when stylesheets are concatenated together.
 +blueprint-scaffolding("body.bp")
 body.bp
   +blueprint-typography(true)

frameworks/blueprint/templates/semantic/print.sass

@@ -1,8 +1,5 @@
 @import blueprint
 
-// To generate css equivalent to the blueprint css but with your configuration applied, uncomment:
-// +blueprint-print
-
 //Recommended Blueprint configuration with scoping and semantic layout:
 body.bp
   +blueprint-print(true)