[libsigcplusplus] Created tag 2.99.3

[Murray Cumming <murrayc src gnome org>]

The unsigned tag '2.99.3' was created.

Tagger: Murray Cumming <murrayc murrayc com>
Date: Fri Mar 18 12:00:53 2016 +0100

    2.99.3

Changes since the last tag '2.99.2':

Marcin Kolny (2):
      build: remove unused m4 file
      .gitignore: update test ignored files list

Murray Cumming (13):
      CMake: tests: explicitly list the tests.
      website: Remove benchmark page, apparently unlinked.
      website: Change News section to just link to NEWS.
      website: Update Developers part to mention libsigc++-3.0.
      test_member_method_trait: Implement the methods.
      website: Fix a capitalized libsigc++.
      website: Mention the GitHub mirror.
      website: Improve the bugs links for clarity.
      configure.ac: Remove check for m4.
      tuple-utils: Change license from GPL to LGPL.
      COPYING: Change from LGPL 2+ to LGPL 3+
      website: license: Link to the (LGPL3) license text.
      2.99.3