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 <stefano.lattarini@gmail.com>