[reSIProcate] Unsafe use of Content-Length in ConnectionBase

[Byron Campen <bcampen@xxxxxxxxxxxx>]

	ConnectionBase uses header(h_ContentLength) without a try block in  
two places. If Content-Length is malformed, we could end up with  
strange behavior (I haven't dug very deep into precisely how  
strange). Recommend we wrap these in try, and if something goes  
wrong, scrap the connection.

Best regards,
Byron Campen

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