Changed check_min_api_version() to print error messages and throw an error if the minimum api is not satisfied. Updated the scripts to reflect the changed check_min_api_version().

tools/get_lib_manpages.lua

@@ -10,10 +10,7 @@ local df = require "lib/dtutils.file"
 local log = require "lib/dtutils.log"
 local libname = nil
 
-if not du.check_min_api_version("3.0.0") then
-  dt.print("ERROR: get_lib_manpages failed to load.  Lua API version 3.0.0 or greater required.")
-  return 
-end
+du.check_min_api_version("3.0.0", "get_lib_manpages") 
 
 local keys = {"Name", "Synopsis", "Usage", "Description", "Return_Value", "Limitations", 
               "Example", "See_Also", "Reference", "License", "Copyright"}