Fixed backwards compatability issues after TachyonURI went in

After TachyonURI went in, backwards compatibility was broken.  This patch brings the old APIs back and marks them `@Deprecated`
Sorry, phone can be hard to comment on some times.

Since I am removing the (int, String) method, then these two can no longer work unless I move it to the top level (TachyonFS).  The reason for this is that `mMasterClient` is only accessible there.