[FYI] Merge branch 'maint' into master

[Stefano Lattarini]

commit 9cb18f18a756e7e6b7aaaaa5deaa7fd677e9a902
Merge: bfd7cc5 34001a9
Author: Stefano Lattarini <address@hidden>
Date:   Fri Jan 11 21:53:19 2013 +0100

    Merge branch 'maint'

    * maint:
      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
      HACKING: we use "merge --log" even when merging master
      HACKING: typofix
      depend2.am: fix comments on verbosity of compilation rules
      depend2.am: improve comments a little
      plans: automake 1.14 is to assume "rm -f" with no args is OK
      plans: we want to active subdir-objects unconditionally in automake 1.14

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