Pyrst

Features:
- better handlers
- better logging
- faster execution

Handlers are now much improved and some bugs are ironed out.

This fixed some glitches some of you have experienced with handlers.

This is the first public alpha for Pyrst, the Python wrapper for the Birst BI suite.

Currently, the functionality is limited to:
- login/logout
- querying
- query handling into `pandas DataFrame`s, JSON files and CSV (and, of course, raw data)
- listing spaces authorised for the current user

While we've thoroughly tested it on real-world queries, it has no test suite yet due to the difficulty of mocking up someone else's API. Bear with us! :) As any alpha software, please enjoy Pyrst 0.5.1 responsibly and with due care and caution.