Some subjects appear blank when they're not.

[campb303]

When parsing item subjects, some items report a blank subject when they're not.

Examples include me67, uds14 and ece47 in q-snapshot.

[benne238]

The issue was that the last header was never being parsed.

for lineNumber in range(self.__getHeaderBoundary() - 1):
    line = self.__rawItem[lineNumber]
    lineHasQueuePrefix = queuePrefixPattern.match(line)

The __getHeaderBoundary() function returns the line number where the headers end. The -1 was added to this range to limit the for loop from parsing the header boundary. However, the range() function is non-inclusive on its upper bound so when it is passed a value n, it returns a range from 0 to n-1 making the -1 unnecessary.