Commented Feature: Add Timeout to WebRequest [2378]

Give the ability to configure the Timeout of WebRequest from TweetinviConfig as request here : https://tweetinvi.codeplex.com/discussions/566507.
Comments: Associated with changeset 38912: Version 0.9.4.0
- Added WebRequest Timeout
- TwitterTimeoutException has been added
- It is now possible to configure the Timeout of WebRequest by setting the TweetinviConfig file
- Updated dependencies to latest version