Update Contribution.md

Author: ardatan

Diff for: CONTRIBUTION.md

@@ -4,66 +4,19 @@ For the coding style guide, we use AirBnB [rules](https://github.com/airbnb/java
 
 ### Clone the source to your computer
 
-In order to work with this package locally when using Meteor 1.3 project, follow these instructions:
+In order to work with this package locally when using Meteor project, follow these instructions:
 
 1. Clone this repository to any folder.
    Note that if you clone into Meteor project directory - you need to put the cloned folder inside a hidden file, so Meteor won't try to
    build it! Just create a folder that starts with `.` under your project root, it should look like that:
    ````
    MyProject
-      .local-work
-         angular2-meteor
+      .local-packages
+         angular-meteor
       .meteor
       client
       server
       public
    ````
 
-2. Make sure that you already have `node_modules` directory under your root, if not — create it:
-   ````
-   $ mkdir node_modules
-   ````
-
-   Also, make sure that you have a NPM project initialized in your directory (you should have `package.json`), if not — use:
-   ````
-   $ npm init
-   ````
-
-3. Make sure that you do not have angular2-meteor already - check under `node_modules` — if you do, delete it.
-
-4. Now you have two options, you can specify the local copy in the `package.json` of your project, as follow:
-   ````json
-   {
-      "dependencies": {
-         "angular2-meteor": "./local-work/angular2-meteor"
-      }
-   }
-   ````
-
-   And then make sure to run the NPM install command:
-   ````
-   $ npm install
-   ````
-
-   **Or, ** you can link the directory using NPM command like tool, as follow:
-   ```
-   $ npm link ./local-work/angular2-meteor
-   ```
-
-### Building the project from sources
-
-In order to use your local copy of Angular2-Meteor, you have two options:
-
-1. Import the TypeScript source code from the package, for example:
-
-   ````
-   import {MeteorComponent} from 'angular2-meteor/modules/meteor_component.ts';
-   ````
-
-2. Or, you can keep the same code you have now, but you will need to build Angular2-Meteor source code each change you perform, by
-   running `npm run build`.
-
-### Troubleshoot
-
-When working with local package, note that you should never have two local packages of `angular2` package, you should have it only under `node_modules/angular2` of the root directory.
-In case of weird errors regarding missing direcrtives - make sure that you do not have a copy of `angular2` package under `node_modules/angular2-meteor/node_modules/angular2`!
+2. Run your project with enviromental variable `METEOR_PACKAGES_DIR=your_packages_folder` directory under your root.