Merge branch 'master' into upload-refactor
Merge branch 'upload-refactor' of github.com:rinatkhaziev/wp-frontend-uploader into upload-refactor
Merge branch 'master' into upload-refactor
Map request fields
Couple of fixes: any different file inputs are allowed per form

Sanitizing file name
Support for multiple files with different form names
Coding standards
Removing test code
Support for multiple file fields with different names. Tackles #48