Fixed aliases not containing `postFile`
Fixed `this` not being bound
Merge pull request #21 from AnyFetch/new-api-fix-mappings

Fixed context bug in mappings
Merge branch 'new-api' of github.com:AnyFetch/anyfetch.js into new-api
Moar of the same fix
Merge pull request #22 from AnyFetch/new-api-fix-mappings

Fixed context bug in mappings (bis)
Merge branch 'new-api' into new-api-bin
Merge branch 'new-api' of github.com:AnyFetch/anyfetch.js into new-api
Merge branch 'new-api' into new-api-bin