fix: Latest dep and linting

Author: dignifiedquire

package.json

@@ -39,7 +39,7 @@
     "dignified.js": "^1.0.0",
     "fs-blob-store": "^5.2.1",
     "idb-plus-blob-store": "^1.0.0",
-    "ipfs-repo": "^0.3.0",
+    "ipfs-repo": "^0.6.1",
     "lodash": "^4.8.2",
     "ncp": "^2.0.0",
     "pre-commit": "^1.1.2",

test/block.spec.js

@@ -13,7 +13,7 @@ describe('block', () => {
   })
 
   it('fail to create an empty block', () => {
-    expect(() => new Block).to.throw()
+    expect(() => new Block()).to.throw()
   })
 
   it('2 different blocks have different hashes', () => {