Add space between icon and assignee

Fixed #100
Correct focus pbm on issues in modal

Fixed #89
url-encode filters in querystring

Fixed #116
Allow not github-saved labels to be shown in labels editor

Fixed #108
Set the token username asap, and use it to filter

Fixed #118
Avoid having to click twice when a select2 is open

Fixed #119

Based on https://github.com/ivaynberg/select2/pull/1942