Otherwise some presence notifications might be lost

Conflicts:
	docs/html/_static/stylesheet.css
	docs/html/searchindex.js

Update bower.json

The version specified in the bower.json of package converse mismatches the tag (0.5.2 vs 0.5.0)

- Added requesting contacts.
- Fix contact width on hover.
- Add tooltips for status icons

Conflicts:
	docs/doctrees/environment.pickle
	docs/html/searchindex.js

Tests pass locally though