liq| refactoring|: +rendererinterface::afterAllFrames()
liq| ipr|: don't clear jobList when rending with IPR
liq| test|: update cases
liq| er|: update install script for maya2013-x64
liq| mod|: 1.output *.mll to $(Platform)/$(Configuration)/plug-ins/
liq| mod|: 2. +$g_SubRenderer, -liquidGatherValidSubRenderers()
liq| mod|: 3.+liquidDLL.mod
liq| mod|: 1.1 output *.mll to $(Platform)/$(Configuration)/plug-ins/
liq| mod|: 4.not use LIQUID_ROOT anymore, and set LIQUIDHOME to <liquid>/2.3.3/ in mod file.
liq| mel|: remove unused procedurals
liq| mod|: 5. bugfix: batch rendering fails.
liq| mod|: update test cases
liq| mod|: 6.+eiSHADER_user_mayaplugin.mod, rmSHADER_user_mayaplugin.mod
liq| er| eiSHADER_user|: remove test case: er_checker, er_flatcolor
liq| mod|: 6.+eiSHADER_user_mayaplugin.mod,
liq| er|: use ER_SPN() for parameters in liq_skylight, maya_physicalsky, update test case and .pl file
liq| mel|: - liquidStartup_subrenderer()
liq| mel|: -liquidGetUserSetupMelFullPath(string $renderer), so env "USERSETUP_$(Renderer)" is useless now.
liq| callback|: bugfix: _liquidCreateLightShadowAttributes() is not found.
liq| shadergraph|: validConnectionMap removes "null"