Changed Alias to Header Rows.

On Device edit and Add Sensor forms.

And on the other sensors form.
Merge pull request #279 from MastodonC/feature/alias-to-header-rows

Changed Alias to Header Rows.
wip: replace dimple with pure d3
wip: clj->js on measurements
Parse measurements.
Fix x axis
Allow to plot the same day and move datepicker.
Better css and clearing of measurements.
Add more data, fix css, control min y-axis value.
Partition by unit.
Improve unit validation.
wip: multiseries
wip: change how units are stored.
Sensors get only selected property
Fix units.
Add second y-axis back.
Tidy up
Pass own colours to colour scale.
Add tooltip (still needs an improvement).
Date range for all series and CSS