Remove ECHO. I'm not sure if it was for debugging or not, but the list

of all actions that jam could possibly execute is not good-looking. E.g:

    gcc.compile
    gcc.link-dll
    gcc.compile
    gcc.link
    ...found 19 targets...
    ...updating 9 targets...
    MkDir1 app/bin/gcc
    MkDir1 app/bin/gcc/debug
    MkDir1 app/bin/gcc/debug/main-target-app
    compile app/bin/gcc/debug/main-target-app/app.o


[SVN r18418]

src/build/virtual-target.jam

@@ -613,8 +613,6 @@ rule action ( targets + : sources * : action-name + : property-set ? )
             # be passed to 'set-target-variables'
             toolset.set-target-variables $(self.action-name[1]) $(actual-targets) :
               $(properties) ;
-
-            ECHO $(self.action-name) ;
             
             modules.call-locally $(self.action-name) 
               $(actual-targets)