[libsigc++2] (6 commits) Created branch variadic

[Murray Cumming <murrayc src gnome org>]

The branch 'variadic' was created.

Summary of new commits:

  638df45... C++11: ptr_fun.h: Replace generated pointer_functor1/2/3/et
  bba0c8d... C++11: ptr_fun.h: Replace generated ptr_fun1/2/3/etc with p
  11c9f09... test_ptr_fun: Fix the build, at least temporarily.
  204c35e... ptr_fun.h: Use this as a normal header instead of generatin
  39b2c1a... functor_trait.m4: Correct the mem_functor<> declarations.
  074ed7a... *mem_functor(): Remove the numbered versions, leaving just