Merge pull request #2 from turint/master

Fixes typo that prevented the stop and adds check for JVB_HOST.
Fixes i386 package when build on amd64.
Updates to the latest jitsi/jitsi i.e. commit a8bb50aab8ecb65cc535c3b6fdb16401e1bf8b9a.
Updates to the latest jitsi/jitsi i.e. commit a8bb50aab8ecb65cc535c3b6fdb16401e1bf8b9a.
Revert "Updates to the latest jitsi/jitsi i.e. commit a8bb50aab8ecb65cc535c3b6fdb16401e1bf8b9a."

This reverts commit ca800f818c1468bcb3387eac7e0d28e56e3fd76f.
Disabled opus FEC in the default configuration, because it causes bad audio quality in Chrome 39.
Adds latest sdes4j bundle to support sdes for sip calls.
Detect the architecture at runtime and use the correct native libraries directory.
Fixes user rights in log folder and introduces a common jitsi group.