indentation error fix

CC-4894: Need to filter output for potential XSS exploits

-fixed few areas

baseUrl is set incorrectly for previewing tracks

-fix changelog indentation

Merge branch '2.2.x' of dev.sourcefabric.org:airtime into 2.2.x

Merge branch 'devel' of dev.sourcefabric.org:airtime into devel

updated changelog for 2.1.3 release

2.1.2 preparation

upgrade script for 2.1.1

CC-3917: record_date field in recorded shows causing problem

-fixed