reverted wmf from .gitignore
added --ddllog
added changed downgrade to abort at a revision if downgrading past it is not defined
remove custom WriteFile function and just use ioutil
removed references to schema_changelog.txt from comments
added comment to FindLatestVersion indicating errors if multiple heads are detected
changed patch directory names to include the date
added description.txt to patch directory
renamed initial commit patch directory to have a datestamp