[Automake-NG] [FYI] Merge branch 'master' into ng/master

[Stefano Lattarini]

commit 05f889a017a262a40459d94c6e20e6c2b4579f5d
Merge: 722f25b c91f24a
Author: Stefano Lattarini <address@hidden>
Date:   Thu May 16 00:00:13 2013 +0200

    Merge branch 'master' into ng/master

    * master:
      post-release: micro version bump (1.13.2a)
      release: stable micro release 1.13.2
      vala tests: skip in a cross compiler setup
      HACKING: miscellaneous fixes, updates and enhancements
      NEWS: minor improvements to wording (about new versioning scheme)
      THANKS: update Akim's e-mail address
      tests: less uses of "make -e"; avoid spurious failures in 
'check-cc-no-c-o'
      build: be more respectful of user-specified verbosity
      check-cc-no-c-o: unify initializations in a single place
      check-cc-no-c-o: avoid a spurious failure
      build: fixup for building in a VPATH setup
      Use AC_DEFUN_ONCE to define AM_PROG_CC_C_O
      compile: avoid AC_PROG_CC messy rewrite
      options: tiny simplification in dealing with incompatible versions

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