(Summary, C): fix xrefs in newly contributed text.
(Threads): index entries, clarifications, example
(passim): minor typos fixed, phrasing improvements
* remote.texi (Bootstrapping): rephrase text on ^C and add index
entries; (Server): explain use of gdbserver w/real-time systems,
add example of conflicting TCP port; (MIPS Remote) break up
running text into table, highlighting commands, and add example.
* Makefile.in: depend on remote.texi rather than gdbinv-s.texi
* remote.texi: (Server) New node on gdbserver. (Remote Serial,
ST2000 Remote, MIPS Remote): mention `host:port' syntax for TCP.
* remote.texi: new name for former gdbinv-s.texi
* gdb.texinfo: use remote.texi rather than gdbinv-s.texi