since the db files were being created inside of the docker container with only
permissions for the root user to rwx and docker run needs all of $PWD to be
readable in order to build a docker container on the host, `make run-docker`
was broken on any subsequent runs. If we create more permissive permissions
then we don't have that issue (group +rx)
By default, BoltDB will hang while waiting to acquire lock to the
datafile, thus the users might find themselves waiting for something
but not what. The added timeout aims inform use about what's
happening.
Also this renames MQADR to TASKSRV, refactor configuration to read
environment variables. RunAsyncRunner now fills the gaps when
parsing TASKSRV.
Fixes#119
