Revert "work in progress: autogenerated keys"

This reverts commit cce8f10ccaceccbec27075bf12405e354aa75c4e, reversing
changes made to d19ebe5f9ad69672c54eb3d8b3468a1d718a6051.
ignore compiled JS files from test
add notes about 0.6.0
bump version number
remove some old debug variable, and add an example for chaining opening multiple stores
fix bug with multiple opens of stores followed by a read