Webex Teams rebrand

• support for the webex.bot domain
• configuration changed to ACCESS_TOKEN (deprecated SPARK_TOKEN, though still supported for backward compatibility)
• documentation update to reflex the Webex Teams rebrand
• code samples updated: https://github.com/CiscoDevNet/node-sparkbot-samples
• bots redeployed to Heroku: roomId@webex.bot, inspect@webex.bot, stats@webex.bot, CiscoDevNet@webex.bot, convos@webex.bot
• pushed to npm as v1.0

Alpha with WebHooks

v0.10

added support for webhooks registration