log parameter interactions to debug.log
Merge pull request #3588

df966d1 log parameter interactions to debug.log (Philip Kaufmann)
Add more data-driven tests.
Final bitcoin_en update before 0.9.0rc1

Just for completeness. Only a few messages changed or moved since last time.

Don't change any translatable messages until 0.9 final unless really necessary.
Merge pull request #3601

c32a486 Add more data-driven tests. (Matt Corallo)