Advanced keyboard shortcuts fix

Opera currently has a bug in the 'Advanced keyboard shortcuts' feature.

This extension fixes these issues.

The bug is caused when using some of the follow single-key shortcuts in input boxes and alike: 1, 2, 6, 7, 8, 9, 0, +, - and /

When these are used, they not only enter the given character in the input box as intended, they also triggers the browser-shortcut later on (when another browser shortcut is used). This usually cause some odd behavior.
This extension override these key events, and fixes the issue.

If you have not enabled 'Advanced keyboard shortcuts', this extension is NOT needed!