Provide Makefile
Summary:
Tests from the store module should be run in sequential,
not in parallel, as they require an exclusive access to
log.db.
Reference: https://doc.rust-lang.org/1.1.0/src/test/lib.rs.html#336
Test Plan: Run make, make test, make clean, make clean-all
Reviewers: dereckson
Differential Revision: https://devcentral.nasqueron.org/D711