[Jprogramming] New Dissect features

[Henry Rich]

The latest version of Dissect has several features intended to help 
novices learn to navigate J sentences.  I am most grateful to John 
Robie, a software veteran and tenacious J novice, for seeing what was 
missing and asking for it, and then working with me to polish the results.

The features are:

* Linkage between the sentence display and the main display. Putting the 
cursor over a word in the sentence highlights the result it creates; 
putting the cursor on a block highlights the word(s) that create it.

* Words in the sentence that have no display block are grayed out.

* Click-and-hold on a wire highlights the wire's entire network.

* String values are displayed with very-light-green text color.

Henry Rich