Review #109
This (fairly major) change adds new "items" to the media list for
Parcel Media and Parcel Audio. Since these items are special (before
the items were always MoaP impls), they had to be treated
special. Moreover, actions on all of "media" had to be centralized so
that they would have similar behavior.
svn merge -r 129913:131718 svn+ssh://svn.lindenlab.com/svn/linden/branches/pluginapi/pluginapi_05
Some branch shenannigans in the pluginapi_05 branch caused this to become a two-part merge.