Changes in version 0.3.0                        

  - NEW: A new function, to detect the path, where R script resides.
    This is similar to $0 in bash scripting. This functionality is
    missing in R
  - better error messages in case of failures

                 Changes in version 0.2.0 (2015-12-02)                  

  - NEW: added beta support to unix pipes
  - some bug fixes in render_funr

                        Changes in version 0.1.0                        

  - funr() outputs a class of funr, which is essentially a list.
  - This ensures that when print is called, it prints it pretty
  - Appreciate if function returns as invisble, do not display the
    results.