Change name from Configuration to Context

tests/print_string.c

@@ -27,12 +27,12 @@
 static void assert_print_string(const char *expected, const char *input)
 {
     unsigned char printed[1024];
-    printbuffer buffer = { 0, 0, 0, 0, 0, default_configuration };
+    printbuffer buffer = { 0, 0, 0, 0, 0, default_context };
     buffer.buffer = printed;
     buffer.length = sizeof(printed);
     buffer.offset = 0;
     buffer.noalloc = true;
-    buffer.configuration = global_configuration;
+    buffer.context = global_context;
 
     TEST_ASSERT_TRUE_MESSAGE(print_string_ptr((const unsigned char*)input, &buffer), "Failed to print string.");
     TEST_ASSERT_EQUAL_STRING_MESSAGE(expected, printed, "The printed string isn't as expected.");