Fix scripts

Fix postinstall and preuninstall scripts which incorrectly try to start `bin/nativescript.js`, which does not exist anymore.

Author: rosen-vladimirov

postinstall.js

@@ -1,7 +1,7 @@
 "use strict";
 
 var child_process = require("child_process");
-var commandArgs = ["bin/nativescript.js", "post-install-cli"];
+var commandArgs = ["bin/tns", "post-install-cli"];
 var path = require("path");
 var nodeArgs = require(path.join(__dirname, "lib", "common", "scripts", "node-args")).getNodeArgs();
 

preuninstall.js

@@ -1,7 +1,7 @@
 "use strict";
 
 var child_process = require("child_process");
-var commandArgs = ["bin/nativescript.js", "dev-preuninstall"];
+var commandArgs = ["bin/tns", "dev-preuninstall"];
 var path = require("path");
 var nodeArgs = require(path.join(__dirname, "lib", "common", "scripts", "node-args")).getNodeArgs();