propagate the parent app's OSUserAppDir (i.e. ~/.secondlife/) all the way down to plugins, if they need persistant user data/settings (like the webkit plugin needs a place to put its cache).
Added accessors to get platform-specific process ID from LLProcessLauncher.
Added an optional "debug" argument to LLPluginClassMedia::init() and LLPluginProcessParent::init() (defaults to false).
Mac only: made the state machine in LLPluginProcessParent::idle() open a new window in Terminal.app with a gdb session attached to the plugin process upon successful launch.
Made LLPluginProcessParent differentiate between failures launching/loading the plugin and failures after the plugin has been loaded. This allows us to handle launch failures differently, since retrying is unlikely to fix them.
Added new media event MEDIA_EVENT_PLUGIN_FAILED_LAUNCH to indicate a launch failure.
Added a case for the new event to LLViewerMediaImpl::handleMediaEvent() that sets the "failed init" flag to prevent retries.
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.
Monroe Linden