Importing Krysto's changes from Bitbucket (Part 1)
fixed german translation.
Merge branch 'master' into gui-updates-improvements
Importing Krysto's changes from Bitbucket (Part 2)
error handling for sending transactions to NIS.
replaced default logging place to ${nem.folder}.
Added transaction controller test to verify that in case of error an exception is thrown.
Merge pull request #3 from NewEconomyMovement/fix/issue#1

replaced default logging place to ${nem.folder}.
Added diagrams for wiki
start moving API documentation into project.
Handling of CompletionExceptions fixed.
fix audit logging
add comment
Merge branch 'feature/error-handling'
reformat code
Merge branch 'master' into feature/remote-nis-connection