Ignore more Debian-build-related files Debian produces log and debhelper files in debian/* that do not need to be known to mercurial. Hence, this patch adds the globs to .hgignore.

# use glob syntax.
syntax: glob

*~
*.py?
.*.swp
.swp
doc/build
build
debian/vmm
debian/*.log
debian/*.debhelper
.pc