mhttpd.c svn rev 4823 implements a modified history planel editor. all previous functions should work 
as before (minus new bugs).

New experimental functions added:

a) there is a new column "Order" containing numbers 10, 20, 30, etc. If you change "30" to (say) "15" 
and press "refresh", the history variables will be reordered according to the new values. If you change 
(say) "10" to "" (empty) or "0" and press "refresh", this variable will be deleted. (But there is a UI wart - if 
you accidentally change the order value to something non-numeric (i.e. "aaa1" or " 1" (leading space) 
and press "enter", the variable will be immediately deleted from odb - "enter" works as "refresh + save" 
- should probably work as "refresh" requiring explicit press on the "save" button).

b) there is a new button "List all" to list all existing variables - next to each variable is a checkbox - 
select any checkboxes and press "add selected" to add selected variables to the history plot. You may 
find this function useful (or not), depending on how many variables you have in your history. For 
T2K/ND280 this is still not good enough (there are still too many variables) and I want to change this to 
a 3 level (equipment, history event, history tag) expandable/collapsable tree (or whatever is simplest to 
implement) - to permit the user to quickly zoom on the interesting variables.

I may still tweak with the UI of these new functions, but the basic functionality (reorder+delete and 
selection of multiple variables from a list) seems to be solid. Comments and suggestions on how to 
make it work the best for your experiment are very welcome.

K.O.