Update mapping.yml

Added draft1 of Folklife
Update mapping.yml

Updated afpep and sheetmusic
Update mapping.yml

fixed syntax
updated mapping.yml; minor corrections
Update mapping.yml

Added contributingInstitution and updated source for sheet music
add some mapping methods
update mapping
update cdm2bag script
Merge branch 'UO-meta' of github.com:OregonDigital/cdm2bag into UO-meta
more updates; great commit messages