Fix load-time version check

tptmp/client/init.lua

@@ -1,11 +1,13 @@
+local common_util = require("tptmp.common.util")
+
 local loadtime_error
 local http = rawget(_G, "http")
 local socket = rawget(_G, "socket")
 if sim.CELL ~= 4 then -- * Required by cursor snapping functions.
 	loadtime_error = "CELL size is not 4"
 elseif sim.PMAPBITS >= 13 then -- * Required by how non-element tools are encoded (extended tool IDs, XIDs).
 	loadtime_error = "PMAPBITS is too large"
-elseif not (tpt.version and tpt.version.major >= 96 and tpt.version.minor >= 2) then
+elseif not tpt.version or common_util.version_less({ tpt.version.major, tpt.version.minor }, { 96, 2 }) then
 	loadtime_error = "version not supported"
 elseif not rawget(_G, "bit") then
 	loadtime_error = "no bit API"