-readFanData was always reading the temperature and the speeds of all
of the fans regardless of what data was displayed in the menu bar. Now,
-readFanData only reads the data necessary to update the text in the
menubar, so, if only the temp is displayed, only the temp is read. The
updating of the fan speeds in the menu is now only done when the user
clicks on the menu. Also: cleaned up some test code and deleted an
unnecessary comment.
The FAQ has a lot of good info and is well written. Any reader of this quick readme should know about the documentation within the FAQ file. I could not figure out a way to universally link to it within githubs flavor of .md markdown, so I just referenced it by textual explanation.
