Set caption (transcript) field to allow for unlimited uploads

Currently, the default install of Able Player sets the field settings for video transcript (caption) files to only allow a single upload. However, the Able Player project adds labels (in the CC menu) and will automatically default to the name of the language on a file.

Simply allow for unlimited uploads and that should then add support for captions in any uploaded language.

Currently this can be done on an exisiting install by going to admin/structure/media/manage/video/fields/media.video.ableplayer_transcript/storage and changing the value to unlimited.