Sequencer: Add tests and workaround for Index serialisation
DB: Comment out some debug logs
Makefile: Add build, test and run make tasks
Commands: make sure *.SetKey() err is checked
Replace Goconvey test framework with Ginkgo Gomega
Record: Add tests
View: Add some tests
Extract Record.K to Key type
Change Sequencer.Index to unified inner-key type kInt
Replace Key type with uint64 after patching bambam