Use official v0.6.0 release

Use official v0.5.0 release

Fix panic when not using a pk

Use Genji v0.4.0 in Badger Engine

Use Genji v0.4.0 in Genji shell

Update dependencies

Mention the command line shell

Create badgerengine module

Use Genji v0.3.0

Use fieldname as key for the index map