clean up non-normalized DOIs

[kcranston]

See OpenTreeOfLife/opentree#1066 and OpenTreeOfLife/peyotl#138

[jimallman]

NOTE that this should also fix the data-deposit DOIs.

[jar398]

I believe this is fixed by 02c52c2, for phylesystem-1. (amendments/additions-5861456-5861468.json has to be fixed too. Since that repository doesn't support issues I'll leave this issue open as a proxy.)