Adding mosh, a mobile shell specializing in intermittent connectivity.

closes #180
posix-man: update to POSIX 2013 (2008 + TC1)

closes #34
kernel: bump to 3.13.1
bump openssh to 6.5

includes new curve25519@libssh.org.
also fix isses with suid binaries, found by @soul9
add pkg/linux-firmware-git
add pkg/parted
make pkg/lvm respecting butch optflags
Merge pull request #183 from redglasses/temp

Adding linux-firmware, parted and make lvm respecting butch optflags.
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