Enabling support for non-Spring launching, documentation

[wdile]

Why

I was experimenting with JBot and found it difficult to launch a bot in a non-spring based application

What

The changes (almost exclusively to the privacy of the fields) allow you to create the Bot object and launch it yourself without the assistance of Spring.

I apologize if you don't like the style of documentation, it isn't exactly my strong point.

[rampatra]

Thank you very much @wildunne for your time and work, I will keep this PR open so if someone wants to use JBot without spring-boot can follow your tips but unfortunately, I created this as a spring-boot library and I have planned to add many more features in the near future which uses spring. So I cannot merge your PR to master as of now. If later things change then for sure, I will merge it.

Hope that's okay with you!

[wdile]

Fine with me, I managed to get around all of this using reflection tricks, it just seems like an odd way for things to be built because it makes it difficult to build anything that will be used by more than one team (at least this is the case as far as I can see)