Fix for build break when PRODUCT_BOOTANIMATION is unset

Change-Id: I236c2dd35ba0e632ed327ed6dc36324c9e59587a
envsetup: Use wait-for-online so these cmds work in recovery

Change-Id: I7a85e7068f373b1d726aa6b27a51862fa9b7c6fd
merge changes from CyanogenMod 10.2 into local branch