emonSD issues created using new scripts + emonhub environment file

Following from emonSD next steps: filesystem & logrotate - #192 by TrystanLea

The merge of the emonhub.env version of emonhub is ready to go, the update procedure to install the emonhub.env file is now live in the latest emonpi repository: add emonhub.env settings file and install as part of update · openenergymonitor/emonpi@693ebd7 · GitHub

The final step is to merge the following emonhub pull request Use emonhub.env to set emonhub path names by TrystanLea · Pull Request #82 · openenergymonitor/emonhub · GitHub. I will merge this tomorrow unless there are any final objections