rel(0.4.1): Update CHANGES [skip ci]

fix(deploy): do not merge branches into master when pushing back skell

Merge branch 'master' into effigies-patch-1

fix(deploy): checkout master branch before pushing skell back

FIX: Commit newly generated S3 skeletons back to repo

Closes templateflow#17

Merge pull request templateflow#16 from effigies/fix/config

FIX: Add extension entity for selection

rel(0.4.0): Update CHANGES [skip ci]

fix(tests): add new template to test, clear cache

fix(tests): do not use internal skelleton for s3 downloads

fix(circle): update pip