Wishlist: tab command, etc    • b_jonas       Here's a wishlist
of some changes I'd like to see in joe-editor.  None of them are
really important, just really small things I meet very rarely.
1.  Currently if you set to autoindent and indent to four
spaces, pressing tab at the beginning of the line inserts spaces
instead of a tab.  That's all well, however in this case the
quote and txt commands also insert spaces when you try to insert
a tab.  In the least case, I think you should fix at least the
quote command (perhaps by changing the uedit.c:utypebw_raw
function not to recognize tabs when the no_decode is set).  I
think the cleanest thing might be if there was a separate tab
command bound to ^W in buffer windows, and type didn't handle
tabs in any special way.      2.  It would be nice if there was
a math variable for each boolean mode (like autoindent etc)
instead of just rdonly.  These would allow a macro to set or
clear a mode easily (instead of just toggling) and restore it. 
As an example, I curr