Print the important failure messages on iOS even in a non-debug build

It might be that having fprintfs leftover in an app submitted to the
App Store is a no-go, but will fix that then if/when it happens.

Change-Id: Ic671fcce567c655a06fd4ed139100dc9b6f435be
Drop libchartcontrollerlo.a in preparation for vmiklos's rework

Change-Id: Ic8ce9b91e666774eff7e452ec9f07c6053dce03b
Add css_comp_chart2_ChartDocumentWrapper_get_implementation

At least with my test documents, this is the only component we now need
from the chartcontroller library.

Change-Id: Ia2c203413a585f4d9207bb22fa5f548eda3fb9a8