[FYI] Merge branch 'maint' into master

[Stefano Lattarini]

commit 7b1697bd9b600cec62b8d52c56d80c60d39108a7
Merge: 2ef0a2d db16f50
Author: Stefano Lattarini <address@hidden>
Date:   Fri Jun 15 10:27:27 2012 +0200

    Merge branch 'maint'

    * maint:
      tests: minor reorganization of few tests
      fixup: adjust t/list-of-tests.mk for renamed/added tests
      subdirs: enhance coverage, tweak and rename few tests
      sync: update files from upstream with "make fetch"
      py-compile: consistently quote 'like this', not `like this'.
      docs: recursive make considered harmful
      docs: clean rules are not run in reverse order of build rules anymore
      silent: new $(AM_V_P) variable, tell if we're running in silent mode
      refactor: silent rules handling (a little)
      refactor: &define_verbose_var: accept a third optional argument

    + Extra non-trivial edits:

    These are due to the fact that support for silent rules is enabled
    unconditionally these days (since commit 'v1.12-34-g14141f2' of
    2012-05-01, "silent rules: support for them is always active now").

    * automake.in: In the new silent related code, do not ever check
    whether the 'silent-rules' option is active; just assume support
    for silent rules is enabled.
    * t/silent-obsolescent-warns.sh: Remove as obsolete.
    * t/list-of-tests.mk: Adjust.

    Signed-off-by: Stefano Lattarini <address@hidden>