Update tip of the day, fix invalid menu items, shortcuts, typos

Hi IntelliJ team,

I went through all tip of the day of IntelliJ Ultimate 12.1.1 and corrected a few mistakes.
Unfortunately the images in the tips aren't displayed if I build IntelliJ Community Edition by myself (Windows 7 32 Bit, Java 7, latest source version from github), but they work fine if I use the packaged version from Jetbrains. Is this normal? 

It would be nice if you would include this patch in one of the following releases.

Best regards

Josef