main app page clean up.
login page tweaks
Fixed footer.
Merge pull request #39 from MastodonC/feature/ui-cleanup

Feature/ui cleanup
better measurements migration
add-user! so you don't have to insert directly.
fix profiles selection query
serve individual profiles as csv as well
convert timestamp into string for json output
Merge pull request #40 from MastodonC/feature/profiles_csv

Profile resource and index rendering (csv and json)
Fix java.lang.Math/abs typo
Batch insert of measurements.
Remove queue and update dirty dates after batch is done.