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

[Stefano Lattarini]

Merge: 352e10c 84d77cd
Author: Stefano Lattarini <address@hidden>
Date:   Sat Jan 12 14:16:04 2013 +0100

    Merge branch 'master' into ng/master

    This merge breaks few tests.  They will be adjusted by follow-up patches.

    * master: (26 commits)
      tests: remove most uses of the AM_PROG_CC_C_O obsolete macro
      coverage: obsolete macro AM_PROG_CC_C_O should cause no warning nor errors
      INSTALL: update copyright years
      ithreads: use runtime (not configure time) detection of perl threads
      copyright: add few missing copyright notices
      maint: files in PLANS are to be exempted from copyright notice
      maint: consistently honor the UPDATE_COPYRIGHT_YEAR environment variable
      copyright: update some copyright years
      compile: use 'compile' script when "-c -o" is used with losing compilers
      HACKING: suggest more checks before releasing
      tests: can fake a compiler not grasping "-c -o" -- globally in all tests
      sync: update files from upstream with "make fetch"
      typofix: in comments in GNUmakefile
      Rename 'maint/' -> 'maintainer/', for Git's sake
      HACKING: minor typofix
      HACKING: bug-tracker, the PLANS directory, and how to plan "big" changes
      HACKING: rewindable branches should live in the 'experimental/*' namespace
      HACKING: fixlets about git branch rewinding policy
      HACKING: commit messages are not to follow GCS ChangeLog rules too 
strongly
      HACKING: "detailed explanation" in commit messages is almost mandatory
      ...

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