Let's try to use -Oz after all

It gives such substantial code space savings. We will just have to
work around the few problems it seems to cause.

Change-Id: I31031dfea049c7d28624c76ec8999976d9383df6
Include the newly required custom shape data files

Change-Id: I3a83be864819a0dea98263ca399789ffd007f405
Add silly workaround for weird Clang (Xcode 5.1.1) problem with -Oz

Change-Id: I4fc5997504d3fb847518317abd5bf80fda4467d5