liq| test|: +test cases: blinn_tex, lambert_tex, phong_tex
liq| doc|: update doc
liq|: +script for building the package
liq|: $g_ShowliqLog  -->  liquidGlobals.showMelCallStack
liq| ui|:
1.isolate menu items for each renderer in "MainMenu>>liquid";
2.isolate menu items for each renderer in "AE>>instance tab>>menu";
3.isolate menu items for each renderer in "AE>>editorTemplate";

bug: liqAE_renderman(or liqAE_elvishray) will appears in main menu, it should locate in instance menu.
liq| test|: +test cases: blinn_tex, lambert_tex, phong_tex. update testscene.py
liq| ui| liquidGlobals|: 1. +AEliquidGlobalsTemplate.mel
liq| ui| erGlobals|: 1. +elvishray::GlobalNode
liq| ui| erGlobals|: 2. +attributes into elvishray::GlobalNode