Deprecate InjectionToken

[basedalexander]

mark InjectionToken entity as deprecated. (Will be removed in future releases).

put /* @deprecated */ comment right above the class

[basedalexander]

Remove from the project.

[Tolowe]

Hey there - found this site via up for grabs. This seems fairly easy for my first attempt at a fork, going to give it a shot if you don't mind. Still just wanting to deprecate this class with the comment above? Going to submit a pull request for that.