0.9.1 Changelog.

Bump version to 0.9.1.

git subrepo push emummc ...

subrepo:
  subdir:   "emummc"
  merged:   "e7799388"
upstream:
  origin:   "https://github.com/m4xw/emuMMC"
  branch:   "develop"
  commit:   "e7799388"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"

Merge pull request #577 from Atmosphere-NX/810_support ...

Implement support for 8.1.0

emummc: support for 8.1.0

Latest supported version is 8.1.0

sept: tweak cluster verif

sept: tweak vector check

sept: add vector check to key derivation

git subrepo pull emummc ...

subrepo:
  subdir:   "emummc"
  merged:   "817020a9"
upstream:
  origin:   "https://github.com/m4xw/emuMMC"
  branch:   "develop"
  commit:   "817020a9"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"

sept: update makefile vars to allow for presigned bin

SEPT_ENC_PATH -> SEPT_00_ENC_PATH + SEPT_01_ENC_PATH

loader: implement 8.1.0 changes

sept: indulge paranoia, some.

sept: validate ccplex reset vector

sept: elide context save for safety.

sept: minor fix

exo: support for 8.1.0

sept: update to support 8.1.0

Revise sept key generation methodology.

git subrepo pull emummc ...

subrepo:
  subdir:   "emummc"
  merged:   "44ecdb45"
upstream:
  origin:   "https://github.com/m4xw/emuMMC"
  branch:   "develop"
  commit:   "44ecdb45"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"

fatal: refactor for R_TRY

loader: refactor for R_TRY

PM: Refactor for R_TRY, remove gotos

Merge branch 'master' of https://github.com/Atmosphere-NX/Atmosphere

ro: update for R_TRY usage

emummc: sanitize raw image file find loop (thanks @AnalogMan)

sm: refactor to use R_TRY

spl: refactor to use R_TRY

git subrepo push emummc ...

subrepo:
  subdir:   "emummc"
  merged:   "b9ac428b"
upstream:
  origin:   "https://github.com/m4xw/emuMMC"
  branch:   "develop"
  commit:   "b9ac428b"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"