Rejig deferred normal-map packing a little, to double its accuracy for free.

...newview/app_settings/shaders/class1/deferred/avatarF.glsl

...view/app_settings/shaders/class1/deferred/blurLightF.glsl

...a/newview/app_settings/shaders/class1/deferred/bumpF.glsl

...ewview/app_settings/shaders/class1/deferred/diffuseF.glsl

indra/newview/app_settings/shaders/class1/deferred/giF.glsl

...pp_settings/shaders/class1/deferred/multiPointLightF.glsl

...iew/app_settings/shaders/class1/deferred/pointLightF.glsl

...newview/app_settings/shaders/class1/deferred/postgiF.glsl

...ew/app_settings/shaders/class1/deferred/softenLightF.glsl

...view/app_settings/shaders/class1/deferred/spotLightF.glsl

...w/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl

...ewview/app_settings/shaders/class1/deferred/terrainF.glsl

...a/newview/app_settings/shaders/class1/deferred/treeF.glsl

.../newview/app_settings/shaders/class1/deferred/waterF.glsl

...view/app_settings/shaders/class2/deferred/blurLightF.glsl

...a/newview/app_settings/shaders/class2/deferred/edgeF.glsl

...app_settings/shaders/class2/deferred/multiSpotLightF.glsl

...ew/app_settings/shaders/class2/deferred/softenLightF.glsl

...view/app_settings/shaders/class2/deferred/spotLightF.glsl

...wview/app_settings/shaders/class2/deferred/sunLightF.glsl