Fixed addthis display issues on chrome

div.addthis doesn't need to be an in-line block.
Merge remote-tracking branch 'pjf.github.io/base' into base
made a percetange, 800px with left justified layout looks weird on 1920px screen
Merge remote-tracking branch 'pjf.github.io/base' into base

Conflicts:
	css/style-desktop.css
Merge remote-tracking branch 'pjf.github.io/base' into base
Merge remote-tracking branch 'pjf.github.io/base' into base
Details for changes beyond the config file
Exclude CUSTOMISATIONS.md from being built.
Merge remote-tracking branch 'pjf.github.io/base' into base
custom css provisions in config
custom.css example - #7
custom css added - #7
updated doco - #7
not sure why it's still in the root in my base, removed