Rename functions to clarify actions

[glasserc]

ethan-wspace defines many functions with names that might be confusing to the new user. Anything with an infix -clean- looks as though it will clean the error type, even though all it really does is turn on clean-before-save behavior for some kinds of whitespace. This is most confusing because some functions, such as ethan-wspace-type-clean, actually perform a cleaning action.

Perhaps these functions should be renamed to something like ethan-wspace-switch-to-cleaning-eol.

This is based on #23, which see for more examples of terminology which confuse new users.