post-review proto version
initial proto v4, the post-review version
s/result_of::unref/detail::child_traits/
another attempt at rvalue/lvalue handling in proto transforms
s/functor/functional
add lambda transform example
gcc-4.0 portability fixes, misc optimizations
latest doc tweaks
proto v4
fix typo
small tweaks
give metafunctions result<> and operator() like a transform
update history
eliminate need for child_traits, handle function references as terminals correctly
assorted bug fixes and imporovements
don't double-deref args to make_expr, nuke trailing spaces
work around member pointer issue on older gcc
const-qualify return of expr<>::make()
loosen const-correctness in return type calculation of _default and default_context
default expression evaluators handle member object pointers