There should be a maximum size for the Aries transaction log file configured out of the box

With the next release of SMX 4.4.1 the Aries TX Manager will write its transactions to the recovery log file by default.
Currently the max size of the tx log file isn't configured and we should limit the file size of the tx log by default and have it rolling over.
The tx log file can easily grow to a few GB in a few hours at runtime.

We should therefore specify defaults for

aries.transaction.howl.maxLogFiles

aries.transaction.howl.maxBlocksPerFile

to some reasonable defaults, assuming the latter variable controls the size of the transaction log file.