Resolves issue with grid owner conflicting with block creator resulting in used space ship salespersons exceeding block limits when they own nothing because they sold them all. This also removes the need to disable players ability to delete their own blocks anymore. Big thanks to zataralee for testing it for us, and to Screaming Angel for the fix.

Workaround - to further reduce incidence of crashes related to LCD updates.

Gets rid of the made in development version error hopefully!
Increases default minimum registered player trade zone size to 20 to make life harder for cheaters.

Workaround: additional catch on font

Workaround: Adds a catch to more elegantly deal with sese etc exceptions relating to updating LCDs.

Ok, hopefully THIS time this fixes the player market reactive pricing issue.

Fixes issue where player owned trade zones were getting reactive pricing.

ModAPI updates. No new functionality.

3.39A add ship selling, grammer corrections and security/bug fixes

Progress 3.38A (reactive pricing)
Adds an initial implementation of Reactive price adjustments.
--Too much stock now reduces buy price, too little stock increase sell price. (only on NPC markets)
Minor ModAPI workarounds added to improve support on DEV version
--Minor workaround for whitelist changes relating to deconstructors
Minor changes to take advange of new path changes.
--Admins can now access their economy save data from the map directory on crappy game server hosting companies
LCDS
--Alters the paging behaviour on LCDs, you can now use P1 / P2 etc to designate page 1 page 2 etc
Mission system
--The demo mission system is properly disabled at the moment - stil a work in progress sorry
Default Pricing
-- Fixes an issue with metal grid where buy and sell price was incorrectly swapped