Various improvements and fixes

Add storage locations timeseries chart

Delete already-parsed METS files

Delete METS files and package lists after parsing

Add full stop to all report descriptions (#158)

* Reformat 'Select Report'  page (#151)

* Move report descriptions into dedicated column.
* Add report filter info to description column.
* Make table header darker to distinguish from striped rows
* Rename 'AIP Storage Locations' report to 'Storage locations'
* Add full stop to all description text
* Add date range option to Storage Location report description.
* make  filter descriptions consistent
* assign proper ID to fix AIP Contents button

add 'coming soon' alerts for unfinished reports

remove errant character in readme

move status console to top of screen

only show View AIPs if there are AIPs