moved semver to dev and added twing 4 support

Author: noel-schenk

lib/consolidate.js

@@ -1780,9 +1780,12 @@ exports.twing.render = function(str, options, cb) {
   return promisify(cb, function(cb) {
     var engine = requires.twing || (requires.twing = require('twing'));
     try {
-      var rendTmpl = new engine.TwingEnvironment(new engine.TwingLoaderNull()).createTemplate(str).render(options);
-      var tmpl = cache(options) || cache(options, rendTmpl);
-      cb(null, tmpl);
+      new engine.TwingEnvironment(new engine.TwingLoaderNull()).createTemplate(str).then((twingTemplate) => {
+        twingTemplate.render(options).then((rendTmpl) => {
+          var tmpl = cache(options) || cache(options, rendTmpl);
+          cb(null, tmpl);
+        });
+      });
     } catch (err) {
       cb(err);
     }

package.json

@@ -23,8 +23,7 @@
     "test": "mocha"
   },
   "dependencies": {
-    "bluebird": "^3.1.1",
-    "semver": "^6.3.0"
+    "bluebird": "^3.1.1"
   },
   "devDependencies": {
     "arc-templates": "^0.5.1",
@@ -69,6 +68,7 @@
     "razor-tmpl": "^1.3.1",
     "react": "^15.6.2",
     "react-dom": "^15.3.2",
+    "semver": "^6.3.0",
     "should": "*",
     "slm": "^0.5.0",
     "squirrelly": "^5.0.1",
@@ -79,7 +79,7 @@
     "tinyliquid": "^0.2.30",
     "toffee": "^0.1.12",
     "twig": "^0.10.0",
-    "twing": ">=2.3.5",
+    "twing": "^4.0.0",
     "underscore": "^1.3.3",
     "vash": "^0.12.2",
     "velocityjs": "^0.8.2",