Add "boxed" bitmap uploads which simply place a non-pow2 bitmap into the smallest larger pow texture.  The added space is filled black.
diff --git a/rsContext.cpp b/rsContext.cpp
index 78b8bf8..e52b0e0 100644
--- a/rsContext.cpp
+++ b/rsContext.cpp
@@ -79,8 +79,7 @@
     mFragment.set(frag);
     mVertex.set(vtx);
     mFragmentStore.set(store);
-    return true;
-
+    return ret;
 }