recordID in getRecordings should accept Array as a parameter (same as meetingID)

[jfederico]

A record ID for get the recordings. It can be a set of recordIDs separate by commas. If the record ID is not specified, it will use meeting ID as the main criteria. If neither the meeting ID is specified, it will get ALL the recordings. The recordID can also be used as a wildcard by including only the first characters in the string.

http://docs.bigbluebutton.org/dev/api.html#getrecordings