add avdevice55 as a dependcy instead of 53, which we need for utopic
remove annoying warning.
Add a stringVector join function for future use
Merge pull request #555 from manupap1/rtsp_fix

Fixed bug in rtsp streaming caused by a signed - unsigned conversion.

I like it. but please... somehelp help out with my comments above.
Merge pull request #557 from manupap1/rtsp_fix

Fixed bug in rtsp streaming caused by a bad string concatenation
Merge pull request #556 from ZoneMinder/add_join

Add a stringVector join function for future use
Update zoneminder.service.in

Fix restart issue when using systemd