fs.mitm: Add title-specific override key support.

loader: add support for title-specific override keys

Fix sept-secondary build when using prebuild sept-secondary.enc (#371)

Allow the user to build with a prebuilt sept-secondary blob via a SEPT_ENC_PATH variable. (#365)

ams: bump version to 0.8.4

changelog: mention kernel patches

sept: prepare for reboot immediately

ams: write changelog for 0.8.4 a while before actual release.

sept_sign: Python 3 compat (#356)

rebootstub: pc-relative load (thanks fincs)

sept-sign: uncorrect misguided meme correction

exo: don't forget to dereference your pointers kids

sept-secondary: Better meme compliance

sept-secondary: Better meme compliance

exo/bpc.mitm: Add support for proper shutdown.

if you edit splash in a forest and nobody is around does it make a sound

fix splash boundaries

sept-s: revise splash for roundedness one more time

Sept: improve edge case cleanup a little.

README: add sept to component list

sept-s: revise splash (larger, square)

sept: change splash to fancy one by @xamanthas

sept-s: turn on backlight after drawing image.

Fix copy/pasted copyright notice

sept-s: splash! (thanks @CtCaer, @balika011)

sept-s: redefine a while.

creport: include firmware version header

Make stratosphere use new libnx HosVersion API

makefile: include sept binaries so people don't have to extract from embedded-in-fusee

update makefile for sept