Siyavula/ieb-physics — pull request #4 by izak (2013-09-17 14:18:47+00:00)
Title: Restore to 90fe053040d253971ab06c838fcac6f45fe16a3b

When the physics books were restored to an older version, the fixes to some image references were broken. This restores it to a somewhat later version where those things had been fixed.