Replaced use of xxx_pair_generator with xxx_generator where

possible (which was all but the projection iterator).


[SVN r8996]

libs/utility

@@ -1 +1 @@
-Subproject commit c503a274b51a382b594f02a3a67816b0f5ce433c
+Subproject commit c25d225275c3fd70ebfe3f40ade48beb41a66aab