1 Title: skype.sip_stack: Fixed "missing key" error which caused a check crash
10 Above error was a result of different key notations for
11 the same object, eg. in "skype.sip_stack" we got
12 - "SIP - Incoming Responses Dropped /Sec" and
13 - "SIP - Incoming Responses Dropped/sec"
14 Now we normalize these keys by ignoring upper/lower