Return of the particle editor

indra/newview/CMakeLists.txt

indra/newview/alfloaterparticleeditor.cpp

indra/newview/alfloaterparticleeditor.h

indra/newview/llviewerfloaterreg.cpp

.../newview/skins/default/xui/en/floater_particle_editor.xml

indra/newview/skins/default/xui/en/menu_object.xml

indra/newview/skins/default/xui/en/menu_viewer.xml

indra/newview/skins/default/xui/en/notifications.xml