Remove Mendeley app ID and secret, let user type for now. Also changed secret on Mendeley.
Remove Mendeley app ID and secret, let user type for now. Also changed secret on Mendeley.

isb-cgc/ISB-CGC-Webapp,isb-cgc/ISB-CGC-Webapp,isb-cgc/ISB-CGC-Webapp,isb-cgc/ISB-CGC-Webapp