Correct Linux-specific manpage sections

Some of the man page locations on Linux differ to those on *BSD.  Noticed by
Christopher Meng.
Fix -fg/-bg/-style with 256 colour terminals.
FAQ about xterm-keys in emacs and vim, from Mark Oteiza.
Merge branch 'master' of ssh://git.code.sf.net/p/tmux/tmux-code
Fix crash due to uninitialized lastwp member of layout_cell, reported by
Balazs Kezes.
Merge branch 'obsd-master'
Update CHANGES and configure.ac for 1.9a release
Go back to working on 1.10
Change terminal-overrides to a server option (now that we have them), it
doesn't make much sense as a session option.
Add to TODO.
Use utempter to update utmp if it's around for configure, from madmaverick9 at
roxxmail dot eu.
Missing period.
I prefer . here not :.
Fix xterm-keys.vim syntax

Fix the typo in the xterm-keys.vim file, from Mark Oteiza.
Add.
Merge branch 'master' of ssh://git.code.sf.net/p/tmux/tmux-code
Change secondary device attributes response to \033[>84;0;0c which is unique
for tmux.
Don't write into buffer if no arguments, reported by Filipe Rosset.
Having three *clock* files is ridiculous, remove clock.c.
Add start-of-list, end-of-list, top-line and bottom-line in choice mode, from
madmaverick9 at roxxmail dot eu, similar diff a few days earlier from Marcel
Partap.