in inner_ext_node_recursive(), changed method to compute children coefficients from project() to unfilter(). This allows us to use inner_ext() on functions that lack functors. It seems to be faster this way too. Also changed test_inner.cc to demonstrate inner_ext() on a function that lacks a functor.
in inner_ext methods: changed many coeffT to tensorT so that MADNESS will compile with --enable-gentensor
Merge pull request #96 from richford/master

Fixed inner_ext_node_recursive() to work with functions that lack functors