Rewrote Documentation
Removed Limitiations from README

Limitations are described in the docs
Switched to squared badges in README
Merge branch '2.0' of https://github.com/eugene-eeo/tinydb into eugene-eeo-2.0

Conflicts:
	README.rst
	tinydb/middlewares.py
Merge branch 'eugene-eeo-2.0'
Fix a typo in the build status link
Better support for IDs (see #17)
Fixed code coverage
Removed debug output
Remove `where(...) in db` (was deprecated)
Fix tests on Python 3
Remove .landscape.yml

[skip ci]
Updated docs for v2.0
Updated README for v2.0
Try to fix GitHub rendering of README

[skip ci]
Small typography fix

[ci skip]
Fix some typos

[skip ci]
Fix some code smells