Fix typos in source base

[theodesp]

Expected Behavior

While I was browsing the source code I noticed a lot of typos and spelling mistakes. Those typos should be corrected as it makes the code easier to read.

Current Behavior

There are numerous typos throughout the code base.

Possible Solution

Go through a simple dictionary checker and fix all those typos.

Steps to Reproduce (for bugs)

1. 2. 3. 4.

Context

Readability

Your Environment

• Version used:
• Environment name and version (e.g. Chrome 39, node.js 5.4):
• Operating System and version (desktop or mobile):
• Link to your project:

Stack trace

[theodesp]

https://github.com/inversify/InversifyJS/pull/613

[theodesp]

Fixed by https://github.com/inversify/InversifyJS/pull/613