generateMgrastWebkey: Generate your webkey on MGRAST
Description
This function help users to generate a webkey which is essential for data uploding to MGRAST.
Usage
generateMgrastWebkey(login.info)
Arguments
login.info
list, reponse information while user login to MGRAST, contains webkey, invalid time of webkey, cookie, websseion and curlhandle, see loginMgrast for more details
Value
webkeycharacter, it will be valid for a limited time only (the next value)
invalid.untilcharacter, with corresponding to the webkey, just the limit time of your webkey