Update khamake and also update khafiles accordingly

khafiles are now asynchronous.

Author: RobDangerous

Kore

@@ -1,5 +1,5 @@
-var project = new Project('Empty');
+let project = new Project('Empty');
 
 project.addSources('Sources');
 
-return project;
+resolve(project);

Tests/Empty/khafile.js

@@ -1,5 +1,5 @@
-var project = new Project('Gamepads');
+let project = new Project('Gamepads');
 
 project.addSources('src');
 
-return project;
+resolve(project);

Tests/Gamepads/khafile.js

@@ -1,5 +1,5 @@
-var project = new Project('MultiWindow');
+let project = new Project('MultiWindow');
 
 project.addSources('Sources');
 
-return project;
+resolve(project);

Tests/MultiWindow/khafile.js

@@ -1,2 +1 @@
-// The is the entry point to build Kha projects.
-require('./Tools/khamake/khamake.js')
+require('./Tools/khamake/khamake.js');