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
fallback to rough scaling if low memory

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Merge pull request #1892 from mcginty/bitmap-memory

fallback to imprecise scaling if low memory
Updated translations.

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Bump version to 2.1.7
Merge remote-tracking branch 'upstream/master'