WowAce

Adirelle:
    - core: do not complain if there is no old version.
    - core: wipe internal data coming from versions anterior to 8.
    See #100.
Rainrider:
    - hunter: fix some of the stuns
    - Fix .pkgmeta
    Closes https://github.com/AdiAddons/LibPlayerSpells-1.0/issues/103
    Thank you @nebularg
Adirelle:
    - hunter: Spirit Mend is not reserved for the pet only.
Rainrider:
    - druid: fix Stellar Flare typo
    Fixes https://github.com/AdiAddons/AdiButtonAuras/issues/235
Adirelle:
    - hunter: bump revision.
    - hunter: tag several pet survival skills.
    - hunter: add Stone Armor (Quilen passive).
    - hunter: Play Dead is a pet survival skill.
    - hunter: tag Feign Death as survival.
Rainrider:
    - hunter: add Aspect of the Chameleon
    - priest: add discipline artifact hidden ability
    Closes https://github.com/AdiAddons/AdiButtonAuras/issues/233