Remove superfluous repetition

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Format outgoing MMS using SMIL.

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Closes #1879
enable more verbose PDU parse logging

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Merge pull request #1886 from mcginty/mms-bad-pdu-logging

enable more verbose PDU parse logging
force redirects, get inputstream first
Merge pull request #1887 from mcginty/mms-3xx

allow url client to follow redirects before checking response code