In progress - datafile page
datafile rework:
reviews fixed
half way through rework
added date service
datapage
half way
Test
Merge branch 'new-layout' of github.com:prisms-center/materialscommons.org into new-layout
fixed conflicts
half done
test
data page prove changes
Merge branch 'current-sprint' into Issue-294-datafile-rework
data page update
test
test
Merge branch 'current-sprint' into Issue-294-datafile-rework
test
add tags and join table