* init teams support
* group method
* client
* getters for team
* rejigging team getters
* channel message fns
* chat message
* fixes
* add ability to limit message list length
* channel working
* upload/download to channel
* tidy
* use beta AzureGraph
* bump cache version
* set remotes hash
* try again
* add new() params
* fixing up messages
* tidy
* AzureGraph changes merged to master
* attachments
* fix
* also do attachments for replies
* attachments working (!)
* also for replies
* attachments really working
* try with no restore-keys
* readd deps=TRUE
* document and export
* expand documentation
* more doc
* share the same login
* fine-tuning
* update description