Changes based on PR comments

.gitignore

@@ -48,6 +48,9 @@ child.conf.json
 # temporary test artifacts
 test/tmp/*
 
+# dotenv environment variables file 
+.env
+
 # Nuget packages and corresponding codegen sources
 .nuget
 packages

.travis.yml

@@ -1,9 +1,9 @@
 language: node_js
 sudo: false
 node_js:
+  - "10"
   - "8"
   - "6"
-
 before_script:
   - npm i -g typescript
   - tsc

documentation/Debugging.md

@@ -1,74 +0,0 @@
-Different ways to debug azure-sdk-for-js
-
-## Using console.log()
-This is always handy and is guaranteed to work.
-It is a good practice to use util.inspect() to dump well formatted objects.
-In your script:
-```
-var util = require('util');
-. . .
-console.log(">>>>>>>>>>>>>> Some Identifier   " + util.inspect(some_object, {depth: null}));
-. . .
-```
-Providing **{depth: null}** is optional. By default, it will dump object upto 3 levels deep. Setting depth  to null will dump the complete object.
-
-## Using Visual Studio
-The Visual Studio plugin for node.js can be downloaded from [here](https://github.com/Microsoft/nodejstools/releases).
-
-### Setting up the project
-* Open the **nodeSDK.sln** file present at the root of the cloned repo.
-* Set the Tab size and Indentation to 2 spaces by going to 
-  * Tools --> Options --> TextEditor --> Node.js --> Tabs --> [Tab size: 2, Indent size: 2]
-  * Tools --> Options --> TextEditor --> Javascript --> Tabs --> [Tab size: 2, Indent size: 2]
-
-### For debugging the tests:
-  * From the menu bar go to Project --> Properties and set the environment variables required for running tests.
-    * The list of environment variables can be found over [here](./EnvironmentVariables.md)
-    * If the need arises to add a new environment variable for tests please update the [Documentation](EnvironmentVariables.md) to keep the list current
-    * Visual Studio can also be opened from **"Visual Studio Debugger Cmd Prompt"** usually located at "C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\Tools\Shortcuts\Developer Command Prompt for VS2013.lnk" to set the environment variables. Then open the .sln file from the prompt.
-  * In the Solution Explorer, click on a test that needs to be debugged. For example: "azure-sdk-for-node\test\services\storageManagement\storageManagementClient-tests.js"
-  * In the **Properties** pane select **"Mocha"** as the Test Framework. Save All the changes. 
-  * The tests shall be seen in the "Test Explorer". Right Click on any Test and Select "Debug Selected Test".
-* **Note:** If the test file has any errors then you might not see the tests in the TestExplorer. In the Properties pane select **ExportRunner** as the test framework and save the solution. You will see the error in the output pane. Once the errors are resolved change the test framework back to **Mocha** in the Properties pane for that test file. When you save the solution, you should see your tests in the test explorer.
-  * You can also run ```npm -s run-script jshint``` in the cmd prompt from the root of the repo to find errors if any. 
-
-##  Using node inspector
-This will open a debugging session in a browser (chrome or opera). It is super easy to use.
-Steps to get it working:
-
-* ```npm install -g node-inspector```
-* Assuming this is being executing in the cmd prompt from the root directory of the cloned repo "azure-sdk-for-node/"
-  *   ```node-debug some-test-script-that-calls-your-service.js```
-* A browser (Chrome/Opera) should pop up, or it can be manually browsed at this url - http://127.0.0.1:8080/debug?port=5858
-* Now breakpoints can be set at desired location.
-* It may happen that files with extension "._js" are not seen initially in the left pane. Please set a break point anywhere in lib\azure.js and keep on pressing "F10". After some time, files with extension "_.js" can be seen. Breakpoints can now be set at desired line in "*._js" file.
-
-### For debugging tests:
-Please follow the below mentioned steps for the debugger to accept breakpoints set in your test file:
-* In the file azure-sdk-for-node/scripts/unit.js
-```
-modify the last line 
-from  - require('../node_modules/mocha/bin/mocha');
-to    - require('../node_modules/mocha/bin/_mocha');
-```
-* set a breakpoint at runTest() method of mocha's runner.
-In the file "azure-sdk-for-node\node_modules\mocha\lib\runner.js" in the "runTest()" method around Line 378.
-  * **Note**: "node_modules" directory is not a part of "azure-sdk-for-node" repository.  If the **"node_modules"** directory or the **"mocha"** directory inside **"node_modules"** directory is not present, then ```npm install``` needs to be executed from the root directory of the cloned "azure-sdk-for-node" repo.
-```
-Runner.prototype.runTest = function(fn){
-  var test = this.test
-    , self = this;
-
-  if (this.asyncOnly) test.asyncOnly = true;
-
-  try {
-    test.on('error', function(err){
-      self.fail(test, err);
-    });
-    test.run(fn); <<<<<<<<<<<<<<<<<<<<<<<-------- set a breakpoint here
-  } catch (err) {
-    fn(err);
-  }
-};
-```
-* Set a breakpoint in your test which should be located under "azure-sdk-for-node/test/commands" directory