Use "ad-get-arg" in some advices
Remove unnecessary autoloads

The only remaining autoload is on "ido-ubiquitous-mode"
Move obsolete declaration before main declaration

As instructed by the help text for "define-obsolete-variable-alias"
Declare var ahead of time to quiet compiler
Add message when mode is enabled or disabled
Add obsolete alias for "ido-ubiquitous-enable-old-style-default"

Fixes #19.
Reorder function declarations

Elisp doesn't have forward declaration, so for byte-compiling,
functions must be defined before first use.
Version 2.0.5 (also add version variable)