Update dependencies

package.json

@@ -46,16 +46,16 @@
   "dependencies": {
     "delegato": "^1.0.0",
     "diff": "^2.2.1",
-    "emissary": "^1.0.0",
-    "event-kit": "^2.4.0",
+    "emissary": "^1.3.3",
+    "event-kit": "^2.5.3",
     "fs-admin": "^0.16.0",
-    "fs-plus": "^3.0.0",
-    "grim": "^2.0.2",
-    "mkdirp": "^0.5.1",
+    "fs-plus": "^3.1.1",
+    "grim": "^2.0.3",
+    "mkdirp": "^1.0.4",
     "pathwatcher": "^8.1.0",
     "serializable": "^1.0.3",
     "superstring": "^2.4.4",
-    "underscore-plus": "^1.0.0",
+    "underscore-plus": "^1.7.0",
     "winattr": "^3.0.0"
   },
   "standard": {

src/text-buffer.js

@@ -1912,11 +1912,7 @@ class TextBuffer {
     try {
       let destination
       if (file instanceof File) {
-        await new Promise((resolve, reject) => {
-          mkdirp(path.dirname(filePath), error => {
-            error ? reject(error) : resolve()
-          })
-        })
+        await mkdirp(path.dirname(filePath))
         destination = filePath
       } else {
         destination = file.createWriteStream()