TRAC #11412

Indexed rendering was always broken because the size
calculated was offset incorrectly (part of a removed optimisation).
copyComponents was broken when I switched from
incremental addressing to explicitly-indexed addressing.

Signed-off-by: Daniel Koch

Author:    Andrew Lewycky <andrew.lewycky@transgaming.com>

git-svn-id: https://angleproject.googlecode.com/svn/trunk@17 736b8ea6-26fd-11df-bfd4-992fa37f6226