Fix api_subdir_gadgets.lua to work with Spring 91 reverse compatibility setup
This fixes CustomUnitShaders not loading
start_unit_setup.lua: fix incorrect use of GetModOption in forcejunior and air_ploppable modoptions
remove Gauss mentions from module descriptions
Merge pull request #78 from sprunk/patch-5

remove Gauss mentions from module descriptions
Removed A Magnificent Journey and Freedom's Calling.
Merge branch 'master' of https://github.com/ZeroK-RTS/Zero-K
Merge pull request #77 from wagonrepairer/master

Remove alloptions table from epicmenu.
Partial rewrite of shield link. It is local and behaves more closely to the global version from 8 months ago. Needs link detection optimization.
Added wanted command for Area Guard gadget.
Fix no duplicate orders nil check (for selecting enemy units).
Fix and optimization for new shield link.
Target priority for Dart: 3 -> 4 (Scorcher is about 3.2 and Slasher is about 3.7).
Added initial reserve setting and set energy reserve at 5% by default.
Everything that skirms Glaives now skirms Skuttle.
Everything that skirms Bandits now skirms constructors, mobile AA, Eraser and Aspis. Placing these units at the front of an army was able to trick the skirmishers into not moving away from the entire army.
Fix to shield link.
gui_epicmenu.lua: fix epicmenu search showing duplicate result of same options if that option use radiobuttons

and 
erase all mention of 'alloption' table since it was all commented out in https://github.com/ZeroK-RTS/Zero-K/commit/6480c15d53fe78cca4112f627d402346398fd50a 
and (super minor)
make 'list' and 'radiobutton' handle OnChange similar to other options
Cleanup, small speedup and probably some fixes to shield link.
Fixed shield link visuals for spectators (obeys fullview).
Added AllowWeaponTarget echo for multiple engine testing.
Removed AllowWeaponTarget echo and fixed target priority.