v0.6.2

This is a minor update and it is not critical for users to update right away unless they want the new functionality.

NEW

• The package no longer stores a list of DataONE format IDs and instead loads them from the CN when the package is loaded. This should prevent the package's list getting outdated as the CN's list is changed.
• The package (once again) checks to make sure it's the latest installable version and warns the user if their version of out of dated

FIXED

• Usages of class(x) == y have been changed to use is instead thanks @ThomasThelen