configure.ac: change a FIXME
build-aux/.gitignore: add test-driver
Remove reference to non-existent WERROR_CFLAGS
Fix it so we really are using libgc.
Change prerelease target to work on current branch, not master
Mention release branch, rather than explicitly "master"
HACKING: fix up diff, don't check in the file. Oops.
README-release.diff: update
README-release.diff: whitespace fix
configure.ac: bump version to 2.4.10
bind.c: bump copyright year to 2012
main.c: bump copyright year in startup message
configure.ac: always build with libgc, we can debug it now

Remove unused LIBGC_CPPFLAGS
Use libgc symbols that can be switched between debug and normal.
.gitignore: allow TAGS in any directory, and remove a redundant pattern
Various fixes to get GC working, plus re-add --enable-debug to configure options
src/.gitignore: add patterns for test files generated by recent autotools
.gitignore: add test-suite.log
build-aux/.gitignore: fix no newline at end of file
src/gc_veneer.c: zero memory returned by calloc veneer