Disable JFFS2 partition by default.

This way, if a user script located in the JFFS partition prevents the router
from booting, a factory default reset will disable it.
Allow enough space for 64 MACs + hostnames
tun: Proper handling of IPv6 header in tun driver when TUN_NO_PI is set (kernel.org commit f09f7ee20c867818bacf79426cf491b2749e7eff)
Bumped revision to alpha 3
DDNS: allow user to force a watchdog-triggered DDNS update after a number of days
Updated documentation
kernel: Disable SLUB debug support, unnecessary on a production release
Update build environment
Build cleanups
webui: Remove misleading description
Updated openssl to 1.0.0m
openssl: ARM assembly pack: AES update (backport from openssl 1.0.2 - commit b76310ba74951dcbfb5b74c039d6f050e0b1eb43)
openssl: MIPS assembly pack: get rid of deprecated instructions (backport from 1.0.2 - commit 1aecb23f5b7364a999c2c061187c9176ee89e3b1)
openssl: ARM assembly pack: SHA update (backport from 1.0.2 - commit 422c8c36e58881eefeb6ea84f4af55c85b302aae)
openssl:  ARM assembly pack: make it work with older toolchain. (backport from 1.0.2 - commit d7d7e7b038d2386f6b1832b035f8641949f3eb04)
openssl: sha/asm/sha256-armv4.pl: add NEON code path. (and shave off cycle even from integer-only code) (backport from 1.0.2 - commit e34140620ed8ce1dfc7f13d3e3b39ade1cb53552)
Bumped revision to alpha 4
Updated documentation
Merge branch 'master' of github.com:RMerl/asuswrt-merlin
Bumped revision to 374.43