Remove unnecessary context storage APIs

and rename context storage APIs

red/runtime/nodes/context/index.js

@@ -180,17 +180,17 @@ function createContext(id,seed) {
     obj.getAsync = function(key) {
         var keyPath = parseKey(key);
         var context = getContextStorage(keyPath.storage);
-        return context.getAsync(scope, keyPath.key);
+        return context.get(scope, keyPath.key);
     };
     obj.setAsync  = function(key, value) {
         var keyPath = parseKey(key);
         var context = getContextStorage(keyPath.storage);
-        return context.setAsync(scope, keyPath.key, value);
+        return context.set(scope, keyPath.key, value);
     };
     obj.keysAsync  = function(storage) {
         var storageName = parseStorage(storage);
         var context = getContextStorage(storageName);
-        return context.keysAsync(scope);
+        return context.keys(scope);
     };
     return obj;
 }

red/runtime/nodes/context/localfilesystem.js

@@ -86,7 +86,7 @@ LocalFileSystem.prototype.close = function(){
     return Promise.resolve();
 }
 
-LocalFileSystem.prototype.getAsync = function(scope, key) {
+LocalFileSystem.prototype.get = function(scope, key) {
     var storagePath = getStoragePath(this.storageBaseDir ,scope);
     return loadFile(storagePath + ".json").then(function(data){
         if(data){
@@ -99,7 +99,7 @@ LocalFileSystem.prototype.getAsync = function(scope, key) {
     });
 };
 
-LocalFileSystem.prototype.setAsync =function(scope, key, value) {
+LocalFileSystem.prototype.set =function(scope, key, value) {
     var storagePath = getStoragePath(this.storageBaseDir ,scope);
     return loadFile(storagePath + ".json").then(function(data){
         var obj = data ? JSON.parse(data) : {}
@@ -113,7 +113,7 @@ LocalFileSystem.prototype.setAsync =function(scope, key, value) {
     });
 };
 
-LocalFileSystem.prototype.keysAsync = function(scope){
+LocalFileSystem.prototype.keys = function(scope){
     var storagePath = getStoragePath(this.storageBaseDir ,scope);
     return loadFile(storagePath + ".json").then(function(data){
         if(data){

red/runtime/nodes/context/memory.js

@@ -55,18 +55,6 @@ Memory.prototype.keys = function(scope){
     }
 };
 
-Memory.prototype.getAsync = function(scope, key) {
-    return Promise.resolve(this.get(scope, key));
-};
-
-Memory.prototype.setAsync =function(scope, key, value) {
-    return Promise.resolve(this.set(scope, key, value));
-};
-
-Memory.prototype.keysAsync = function(scope){
-    return Promise.resolve(this.keys(scope));
-};
-
 Memory.prototype.delete = function(scope){
     delete this.data[scope];
     return Promise.resolve();