Setup Thread's context ClassLoader and add image DexFiles to ClassLinker's boot classpath

Change-Id: I84337c69ff743c58be9e7125d17fcccb514614ef
diff --git a/oat_process/app_main.cpp b/oat_process/app_main.cpp
index 53321f1..4e90dab 100644
--- a/oat_process/app_main.cpp
+++ b/oat_process/app_main.cpp
@@ -77,7 +77,7 @@
         char* slashClassName = toSlashClassName(mClassName);
         mClass = env->FindClass(slashClassName);
         if (mClass == NULL) {
-            LOG(ERROR) << StringPrintf("ERROR: could not find class '%s'\n", mClassName);
+            LOG(FATAL) << "Could not find class: " << mClassName;
         }
         free(slashClassName);