Web interface: Be more careful when url encoding things.

Some characters weren't url encoded.
Lite builds: Fix a minor inconsistency regarding the output directory.

Lite debug builds use "mpc-hc_x??_Debug Lite" while release builds always used "mpc-hc_x??" for both normal and lite builds.
Vobsub: Avoid parsing the complete subtitle entry when possible.
Vobsub: Support animated subtitles (with fade in/out).

This commit fixes #1814.
WebUI: Inform the web interface that no audio stream is available.
WebUI: Make use of new `[hasaudio]` info.
WebUI: show a "X" when there's no audio available.
WebUI: Cleanup.
WIP

Conflicts:
	src/mpc-hc/res/web/controls.html

Conflicts:
	src/mpc-hc/res/web/controls.html