#858 Two-finger scrolling also right-clicks

[Cheni C]

When using Dr. Java in Ubuntu Linux and trying to use the two-finger scrolling in the editor panel, Dr. Java also detects the two fingers as a right click, resulting in some scrolling and the right-click menu appearing. I believe I found somewhere a comment that this is related to the JVM, not necessary Dr. Java specifically. I think whatever comment I did find was referring to the issue appearing when using Netbeans.