[Tachyon-14] TachyonURI (Client)

Internal methods that are deprecated should be removed as the refactor continues. Some questions left in the code as TODOs, will clean them up as they are addressed.
Yes, you can keep it in the TachyonFS class but you do not need it in the TachyonFSCore interface.

What I was saying is to just remove the deprecated methods from TachyonFSCore but keep them in the TachyonFS. 
We dont have to define those methods in  TachyonFSCore interface anymore.

I believe the shell code refer to TachyonFS directly instead of TachyonFSCore so it will be safe to remove them from TachyonFSCore.