[gerbil.el] Override cmuscheme functions for easier scheme mode integration.
[gerbil.el] Override cmuscheme functions for easier scheme mode integration.

Override cmuscheme interface. Default cmuscheme send and compile
functions can be used.

Enables sending single definitions to the repl through scheme-send-definition.
Other scheme-send-* functions also behave as expected.
scheme-compile-* will however compile the whole buffer.

vyzo/gerbil,vyzo/gerbil,vyzo/gerbil