Fix incorrect docs for v1 move/copy.
Fix incorrect docs for v1 move/copy.

 * Default conflict resolution setting is "warn", not "keep".

 * Finor formatting adjustments for DELETE

RCOSDP/waterbutler,Johnetordoff/waterbutler,TomBaxter/waterbutler,CenterForOpenScience/waterbutler,rdhyee/waterbutler,felliott/waterbutler