Started work on replacing the prevalance system logic from Prevayler to
custom made logic for Dynamake. 
This was started to due to starting to observe, as a an end user,
unacceptable latency. This latency seems to be caused sequencialized
execution of both the transaction and the journaling of the
transactions. What is needed is parallelization of these two processes. 

Signed-off-by: Jakob Brandsborg Ehmsen <jakobehmsen.github@gmail.com>