Update dependencies

package.json

@@ -31,13 +31,13 @@
     },
     "devDependencies": {
         "@types/chai": "4.1.7",
-        "@types/mocha": "5.2.5",
-        "@types/node": "10.12.18",
+        "@types/mocha": "5.2.6",
+        "@types/node": "11.11.3",
         "@types/phantom": "3.2.5",
-        "@types/sinon": "7.0.2",
-        "chai": "4.1.2",
-        "coveralls": "3.0.2",
-        "del": "3.0.0",
+        "@types/sinon": "7.0.10",
+        "chai": "4.2.0",
+        "coveralls": "3.0.3",
+        "del": "4.0.0",
         "fancy-log": "1.3.3",
         "gulp": "3.9.1",
         "gulp-coveralls": "0.1.4",
@@ -49,12 +49,12 @@
         "gulp-typescript": "5.0.0",
         "merge2": "1.2.3",
         "minimist": "1.2.0",
-        "remap-istanbul": "0.12.0",
+        "remap-istanbul": "0.13.0",
         "run-sequence": "2.2.1",
-        "sinon": "7.2.2",
-        "tslint": "5.12.0",
-        "tslint-microsoft-contrib": "6.0.0",
-        "typescript": "3.2.2"
+        "sinon": "7.2.7",
+        "tslint": "5.14.0",
+        "tslint-microsoft-contrib": "6.1.0",
+        "typescript": "3.3.3333"
     },
     "dependencies": {
         "jimp": "0.2.28",

tslint.json

@@ -256,6 +256,7 @@
         "typeof-compare": false,               // the valid-typeof rule is currently superior to this version
         "file-name-casing": false,
         "no-unused-variable": false,
-        "ban-ts-ignore": false
+        "ban-ts-ignore": false,
+        "unnecessary-else": false
     }
 }