Update README.md
Version 0.1.87

* Deprecated /config/databases.js parameter: database.alias, use hash
key instead
* Sandbox namespaces are arranged, see issue for details, close #102
* Warning: you need refactor code, replacing fs.*, async.*, ... to
api.fs.*, api.async.*, ...
Code style fixes
Merge remote-tracking branch 'origin/master' into session

Conflicts: lib/impress.sse.js
Merge branch 'session' of https://github.com/tshemsedinov/impress into session