issue #66: better error message for non-luadoc behaviour; now controlling backticks in the docs better

doc/config.ld

@@ -2,6 +2,7 @@ project='LDoc'
 title='LDoc documentation'
 description='A Lua documentation tool'
 format='discount'
+backtick_references=false
 file='../ldoc.lua'
 dir='../out'
 readme='doc.md'

ldoc/doc.lua

@@ -422,7 +422,7 @@ end
 
 function Item:trailing_warning (kind,tag,rest)
    if type(rest)=='string' and #rest > 0 then
-      Item.warning(self,kind.." tag: '"..tag..'" has trailing text; use no_luadoc=true\n'..rest)
+      Item.warning(self,kind.." tag: '"..tag..'" has trailing text; use not_luadoc=true if you want description to continue between tags\n'..rest)
    end
 end