Made sure id->misc->pref_languages always exists, so that we can do language stuff without hassle also in internal requests etc. (Even the preferred_language module itself assumes that it always exists, which caused trouble in e.g. the resolve path wizard.) <opinion>PrefLanguages should have been integrated into RequestID from the beginning.</opinion> Rev: server/base_server/prototypes.pike:1.53 Rev: server/base_server/roxen.pike:1.810 Rev: server/base_server/roxenloader.pike:1.328 Rev: server/protocols/ftp.pike:2.83 Rev: server/protocols/http.pike:1.380