Logs support.

Added /logs endpoint with basic logger and LoggerAdapter.

spec/LoggerController.spec.js

@@ -0,0 +1,55 @@
+var LoggerController = require('../src/Controllers/LoggerController').LoggerController;
+var FileLoggerAdapter = require('../src/Adapters/Logger/FileLoggerAdapter').FileLoggerAdapter;
+
+describe('LoggerController', () => {
+  it('can check valid master key of request', (done) => {
+    // Make mock request
+    var request = {
+      auth: {
+        isMaster: true
+      },
+      query: {}
+    };
+
+    var loggerController = new LoggerController(new FileLoggerAdapter());
+
+    expect(() => {
+      loggerController.handleGET(request);
+    }).not.toThrow();
+    done();
+  });
+
+  it('can check invalid construction of controller', (done) => {
+    // Make mock request
+    var request = {
+      auth: {
+        isMaster: true
+      },
+      query: {}
+    };
+
+    var loggerController = new LoggerController();
+
+    expect(() => {
+      loggerController.handleGET(request);
+    }).toThrow();
+    done();
+  });
+
+  it('can check invalid master key of request', (done) => {
+    // Make mock request
+    var request = {
+      auth: {
+        isMaster: false
+      },
+      query: {}
+    };
+
+    var loggerController = new LoggerController(new FileLoggerAdapter());
+
+    expect(() => {
+      loggerController.handleGET(request);
+    }).toThrow();
+    done();
+  });
+});