Remove double quotation marks.

On running the following command...

```javascript
echo "0.9.1" >> .openshift/markers/NODEJS_VERSION
```
you get the NODE_JS file with has "0.9.1" in double quotation marks while it should contain 0.9.1 without quotation marks as shown in your  repository.
Merge pull request #4 from kanakiyajay/patch-1

Remove double quotation marks.