chore: upgrade dependencies (#198)

Author: richardschneider

package.json

@@ -40,13 +40,12 @@
   },
   "homepage": "https://github.com/ipfs/js-ipfs-unixfs-engine#readme",
   "devDependencies": {
-    "aegir": "^12.1.3",
-    "ajv": "^5.3.0",
+    "aegir": "^12.2.0",
     "chai": "^4.1.2",
     "dirty-chai": "^2.0.1",
-    "ipfs": "~0.26.0",
+    "ipfs": "~0.27.0",
     "ipfs-block-service": "~0.13.0",
-    "ipfs-repo": "0.18.3",
+    "ipfs-repo": "~0.18.3",
     "ncp": "^2.0.0",
     "pre-commit": "^1.2.2",
     "pull-generate": "^2.2.0",
@@ -61,9 +60,9 @@
     "cids": "~0.5.2",
     "deep-extend": "~0.5.0",
     "ipfs-unixfs": "~0.1.14",
-    "ipld-dag-pb": "~0.11.3",
+    "ipld-dag-pb": "~0.11.4",
     "ipld-resolver": "~0.14.1",
-    "left-pad": "^1.1.3",
+    "left-pad": "^1.2.0",
     "lodash": "^4.17.4",
     "multihashes": "~0.4.12",
     "multihashing-async": "~0.4.7",
@@ -72,7 +71,7 @@
     "pull-cat": "^1.1.11",
     "pull-pair": "^1.1.0",
     "pull-paramap": "^1.2.2",
-    "pull-pause": "0.0.1",
+    "pull-pause": "0.0.2",
     "pull-pushable": "^2.1.1",
     "pull-stream": "^3.6.1",
     "pull-traverse": "^1.0.3",