Add wrapper to abc::_raw_trivial_vextr_impl::insert_remove() to allow for compiler optimization
Allow insertion of uninitialized items in abc::_raw_trivial_vextr_impl::insert_remove()
Add abc::text::utf*_char_traits::codepoint_size()
Implement proper assignment to abc::text::_codepoint_proxy
Reuse code in abc::text::utf*_char_traits in abc::text::transcode()
Merge branch 'python2.7'