Add subtitle support when playing HLS

Fixes #1739
Update ru_RU.lang

another update
Merge pull request #136 from pvc1/patch-9

Update ru_RU.lang
	added missing translation:   lang/ru_RU.lang
Merge pull request #137 from lprot/master

	added missing translation:   lang/ru_RU.lang
Update fr_FR.lang

New traduction
Merge pull request #138 from niconico27/patch-4

Update fr_FR.lang
linux: Add user's Music, Pictures and Video folders to home screen
Add support for doing network connection configuration using Connman

Currently only for Raspberry Pi
plugin.view: Get rid of a trace() cmd
configure.rpi: Allow to build without --vcroot
rpi: Roll CEC param32 -> char[] converter ourself
linux/trap: Initialize Dl_info to zero as dladdr fails to do that
glw: Get rid of some uses of gr_frameratea and gr_frameduration
Fix crash when deleting exported bookmarks

Fixes #1737
rpi: We have realpath() since it's a Linux system
Refuse loading dev plugin if fa_normalize fail
glw: Allow some widget to be "externalized"

This means they can be rendered outside the GLW layout process.
Typically used for background images that are much faster rendered
and displayed with dedicated hardware planes on embedded CPUs
Update ru_RU.lang

slightly improved syntax
Fix broken save of multiopt settings in javascript

Fixes #1751