+* improved: echo all debug messages even when there are characters in them which php deems in a wrong encoding
+ (this is visible e.g. in the debugger)
+
+* changed: debug info handling
+ - at debug level 1, the rebuilt php objects are not dumped to screen (server-side already did that)
+ - at debug level 1, curl communication info are not dumped to screen
+ - at debug level 1, the tests echo payloads of failures; at debug level 2 all payloads
+