Update index.js to use hyperkv

Author: mels065

.gitignore

@@ -1,3 +1,4 @@
 tmp
 node_modules
 data.jawn
+hyperkv-examples.js

index.js

@@ -1,13 +1,20 @@
+var hyperkv = require('hyperkv')
+var hyperlog = require('hyperlog')
+var sub = require('subleveldown')
 var level = require('level')
-var hypercore = require('hypercore')
+
 var createImportPipeline = require('./lib/import.js')
 
 module.exports = Jawn
 
 function Jawn (opts) {
   if (!opts) opts = {}
   var db = opts.db || level('data.jawn')
-  this.core = opts.core || hypercore(db)
+  var kv = hyperkv({
+    log: hyperlog(sub(db, 'log'), {valueEncoding: 'json'}),
+    db: sub(db, 'kv')
+  })
+  this.core = opts.core || kv
   this.db = this.core.db
 }
 

package.json

@@ -28,7 +28,10 @@
     "parse-input-stream": "^1.0.1",
     "path": "~0.12.7",
     "tape": "~4.5.1",
-    "through2": "^2.0.1"
+    "through2": "^2.0.1",
+    "hyperkv": "^1.5.2",
+    "hyperlog": "^4.8.1",
+    "subleveldown": "^2.1.0"
   },
   "devDependencies": {
     "standard": "^6.0.5",