Fixing note

Currently I get this note (and always end up breaking things when trying to fix it)

> checking compiled code ... NOTE
  File ‘binostics/libs/binostics.so’:
    Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’
  
  It is good practice to register native routines and to disable symbol
  search.
  
  See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.

