[LMP] Better output pipeline with identity placeholder.
[LMP] Path::{Insert,Remove}Element().
[LMP] FilterElement base class.
[LMP] Removed unused var.
[LMP] Added RGFilter.
[LMP] GStreamer 1.0 compatibility in filter elems.

Adding/removing filter elements is GStreamer 1.0-compatible now.
Well, at least it compiles.
[Tools] Deploy after dealing with streamer.
[Tools] Fix various paths in gstreamer plugins.
[LMP] Migrate current source changing to GStreamer 1.0.
[Core] Ignore painter issues on Mac as well.
[LMP] Added GstUtil and GstUtil::AddGhostPad().
[LMP] Added volume normalizer elem to RGFilter.
[LMP] Added prop setters to RGFilter.
[LMP] Added EffectsManager.
Merge branch 'master' of github.com:0xd34df00d/leechcraft
[LMP] Fixed GStreamer 0.10 compatibility.
[LMP] Fixed EOS handler.
[LMP] Refactored path elems addition/removal.
[LMP] Fixed adding filters before playback is started.
[LMP] Instantiate EffectsManager.