CLC-4410 Non-working first draft of batch proxy impl
CLC-4410 Refresh the token before running the batch
CLC-4410 Make batch more generic; implement get and update; test thoroughly
CLC-4410 Rename test
CLC-4410 Use batch proxies for Calendar exporter
CLC-4410 Handle batch requests in slices of 500
CLC-4410 Tweak logging, comments
CLC-4410 Make events_insert_spec testext again
Merge pull request #3114 from ctweney/clc-4410

CLC-4410 Making calendar more scalable