[Telepathy] media engine

[Dafydd Harries]

The component "voip-engine" has now been renamed to "media-engine". This is in
anticipation of it handling more than voip calls. Currently, however, the bus
name and object path remain unchanged, so media engine should work with other
components without modification.

It may be worthwhile for components that refer to VoipEngine to search for
MediaEngine on the bus first, to ease with the transition. On the other hand,
this may be unnecessary, and it may be better just to convert everything
outright.

Tree should appear at:

http://projects.collabora.co.uk/darcs/telepathy/media-engine

shortly.

Regards,

-- 
Dafydd