Merge branch 'maint' into yacc-work

[Stefano Lattarini]

commit f0645e2ddf6327fafdd072d1c30d15f48510e605
Merge: 1560265 77b2c71
Author:     Stefano Lattarini <address@hidden>
AuthorDate: Tue Dec 27 22:01:12 2011 +0100
Commit:     Stefano Lattarini <address@hidden>
CommitDate: Tue Dec 27 22:01:12 2011 +0100

    Merge branch 'maint' into yacc-work

    * maint: (34 commits)
      tests: drop unnecessary requirement in 'subpkg.test'
      gitlog-to-changelog: new auxiliary script, synced from gnulib
      docs: "aclocal --install -I /abs/dir" actually copies files
      docs: fix node names for automake and aclocal invocations
      gitignore: use only one .gitignore file, in the top-level directory
      tests: one more fixlet for gettext macros requirement
      tests: fix handling of gettext macros requirement
      tests: fix failure due to debugging code forgotten into a test
      tests: avoid spurious failure of libtool and gettext tests
      hacking: distribute it, and mention it in the ChangeLog
      regex: deprecate the obsolete macro AM_WITH_REGEX
      maint: distribute .xz tarballs, not .bz2 ones
      maint: better use of autoconf 2.68 features
      cosmetics: use proper m4 quoting in configure.ac
      include: avoid "deleted .am file" problem
      tests: better handling of gettext and libtool requirements
      fix: typos and grammaros in comments of the new test
      tests: report useful system information in 'test-suite.log'
      python: remove relics for Python 1.5 support
      configure: remove extraneous 'eval's from AM_RUN_LOG invocations
      ...