pick up the pugs that is installed from git

Author: moritz

evalbot.pl

@@ -180,7 +180,8 @@ package Evalbot;
                 filter      => \&filter_pct,
             },
             pugs => {
-                cmd_line    => 'PUGS_SAFEMODE=true ~/.cabal/bin/pugs %program',
+                cmd_line    => 'PUGS_SAFEMODE=true ~/ghc-7.2.1/bin/pugs %program',
+                revision    => sub { get_revision_from_file("$home/ghc-7.2.1/pugs_version")},
             },
             std  => {
                 chdir       => "$home/std/snap",