.hgignore: Add some more files created by all.bash.
.hgignore: Add some more files created by all.bash.

R=rsc
CC=golang-dev
http://codereview.appspot.com/4105044

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang