added domain to path
added HMAC authentication
added confirmation logic to schema delete script
added domain to path
added authentication
added confirmation logic to schema delete script
- added configuration module, utility and .py file; config is stored in amdw_config dynamo table
- added rotating tables of configurable size for data points and data points index
  this will allow scheduled downsampling /aging of data
- added exceptions module
- moved spooled datapoints writing classes to separate module
- added auth to query client code