[FYI] Merge branch 'maint' into master

[Stefano Lattarini]

commit 2c72b157e7c37964f6854d7b5c29c97957b02e36
Merge: b49ebac 94c28cc
Author: Stefano Lattarini <address@hidden>
Date:   Mon Jan 21 15:48:48 2013 +0100

    Merge branch 'maint'

    * maint:
      tests: more information about Lex and Yacc programs
      lint: fix spurious failure for 'sc_rm_minus_f' syntax check
      maint: bump version 1.13.1a -> 1.13.2a
      maint: update copyright in files generated by automake and aclocal
      tests: avoid a spurious failure when running inside Emacs
      tests: make two new test executable
      m4: rename an m4 file to a more appropriate name
      NEWS: update w.r.t. recent documentation fixes
      compat: reinstate AM_CONFIG_HEADER and AM_PROG_CC_STDC
      docs: parallel-tests is no longer experimental
      docs: serial-tests are not deprecated, just discouraged
      plans: we are not going to remove AM_PROG_MKDIR_P in Automake 1.14
      NEWS: we are not going to remove AM_PROG_MKDIR_P in Automake 1.14
      init.m4: add probe to check "rm -f" without args work

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