split OTMessage::updateContentsByType into small methods, part 1
split OTMessage::updateContentsByType into small methods, part 2
split OTMessage::updateContentsByType into small methods, part 3
split OTMessage::updateContentsByType into small methods, part 4
split OTMessage::updateContentsByType into small methods, part 5
Reformat code from previous commits
Merge pull request #325 from mhamrle/otmessage_refactor_part3

Otmessage refactor part3