* lisp/net/dictionary-connection.el (dictionary-connection-status,
dictionary-connection-close): Instead of returning nil in the else case
of the if just use when.
Was suggested by Stefan Kangas.
Use defsubst instead of defmacro here. It was suggested by Stefan
Kangas to replace the defmacro here and, looking at the lispref,
defsubst seems to be a suitable replacement providing the same
benefit of inlining functionality as the defmacro.
* lisp/net/connection.el: Renamed to dictionary-connection.el, also
prefixing all functions with "dictionary-" prefix
* lisp/net/dictionary.el: Adapt to renamed functions