A bug prevented regenerating license release requests. This has been corrected. A crash due to a formatting error has been addressed. Clean up of logging and additional logging for open session failures have been included. b/16197822 Merge of https://widevine-internal-review.googlesource.com/#/c/10806 from the widevine cdm repo. Change-Id: I854ead388f311d00b1cd700dfa1b2f58322c2dd4