Merge pull request #752 from YakBizzarro/emi-check-md5-update

EMI: Add the md5 of MonkeyUpdate.exe and check it, if present
GRIM/EMI: Break up global config keys from Grim registry and turn off it in EMI
EMI: Add support for PatchR from bundled container
EMI: Add functions to handle saving preferences outside efmi.cfg and relative hooks in scripts