MAINT: Add base version of callback.js
MAINT: Add base version of callback.js

biocore/basespace-qiime,ElDeveloper/basespace-qiime,ElDeveloper/basespace-qiime,ElDeveloper/basespace-qiime,biocore/basespace-qiime,biocore/basespace-qiime,biocore/basespace-qiime,ElDeveloper/basespace-qiime