Merge branch 'maint' into master

[Stefano Lattarini]

commit 3c66523fe55c94b19b5b26e0eae1c8de1d47d0cd
Merge: a6c1711 32cde2a
Author:     Stefano Lattarini <address@hidden>
AuthorDate: Tue Jan 31 08:31:59 2012 +0100
Commit:     Stefano Lattarini <address@hidden>
CommitDate: Tue Jan 31 08:31:59 2012 +0100

    Merge branch 'maint'

    * maint:
      tests: do not assume the object file extension is .o
      tests: avoid spurious failure of 'transform2.test' on Cygwin
      tests: avoid spurious failure of deleted-am.test with FreeBSD make
      tests: avoid possibly undeserved PASS from check8.test
      warnings: more precise category and message for one warning
      release: revamp rules to tag and upload the releases
      amversion: add missing dependency
      hacking: update advice w.r.t. synced files
      hacking: don't reference ChangeLog anymore

    + Extra non-trivial edits:

    * tests/suffix8.tap: Copy in (by hand) the modifications done
    to 'suffix8.test' on maint, i.e., the addition of an explicit
    '.y_.obj:' suffix rule to Makefile.am.