This reverts commit a02510d20a59ddecd6abb4c63acd2f7f2fe99820.

This reverts commit 7c4358ae44d26c4c45247fafed37c6ab961ccbd7.

This reverts commit c4d3afb2e00efbd544e1c4a2af44b0a9352488fb.

This reverts commit 075680e064349600417a268e06fadc5b67ca7dba.

This reverts commit f884bac620719c470cb2161f6301fb5828fe81e8.

Update the README to suggest constructor-based DI

Constructor-based DI asserts that the class cannot
be instantiated without the supplied dependency. This method
enforces the requirement whether or not you use Spring, and
therefore is container-agnostic.

Also, Spring will throw up a Warning flag if you just annotate
the prop with @Inject