The patch convers most literals throughout marconi to unicode. Lietrals
not leaving "marconi-land" were left untouched.
This is the first patch of a serie that will enforce unicode usage
within marconi. Decode early, encode late.
String format parameters were left untouched on purpose. Those
parameters should be decoded before getting there.
Implements blueprint enforce-decoding
Change-Id: I85e534ced188191c9c7a17e9908cb720e7d63ca9
d8c68d8609