add CRASHREPORT directly to browser

add CRASHREPORT for Windows
add ^P info to report (via DUMPLOG)

new options: crash_email, crash_name, crash_urlmax
new game command: #bugreport
new config option: CRASHREPORT_EXEC_NOSTDERR
new command line option: --bidshow

deleted helper scripts:
    NetHackCrashReport.Javascript
    nhcrashreport.lua

misc:
    update CRASHREPORTURL (will need to be updated before release)
    update bitrot in winchain
    winchain for Windows
    add missing synch_wait for NetHackW --showpaths
    add PANICTRACE (and CRASHREPORT) in mdlib.c:build_opts

missing:
    packaging (Windows needs the pdb file)
    no testing with MSVC command line build

port status:
    linux: working, but glibc's backtrace doesn't show static functions
    Windows VS: working.  pdb file is large - looking into options
    MacOS: working
    msdos: not supported
    VMS: not supported
    MSVC: planned, but not attempted
    MSYS2: working, but libbacktrace not showing symbols (yet?)

include/optlist.h

@@ -226,6 +226,17 @@ static int optfn_##a(int, int, boolean, char *, char *);
     NHOPTB(confirm, Advanced, 0, opt_out, set_in_game,
            On, Yes, No, No, NoAlias, &flags.confirm, Term_False,
            "ask before hitting tame or peaceful monsters")
+#ifdef CRASHREPORT
+    NHOPTC(crash_email, Advanced, PL_NSIZ, opt_in, set_in_game,
+                No, Yes, No, No, NoAlias,
+		"email address for reporting")
+    NHOPTC(crash_name, Advanced, PL_NSIZ, opt_in, set_in_game,
+                No, Yes, No, No, NoAlias,
+		"your name for reporting")
+    NHOPTC(crash_urlmax, Advanced, PL_NSIZ, opt_in, set_in_game,
+                No, Yes, No, No, NoAlias,
+		"length of longest url we can generate")
+#endif
 #ifdef CURSES_GRAPHICS
     NHOPTC(cursesgraphics, Advanced, 70, opt_in, set_in_config,
                 No, Yes, No, No, NoAlias,