org-babel-result-cond - unified handling of results

org-babel-result-cond - unified handling of results

* lisp/ob.el (org-babel-result-cond): This function should now be used
  by all language backends to handle the processing of raw code block
  output into scalar results, table results, or ignored results
  depending on the value of result-params.

* lisp/ob-C.el (org-babel-C-execute): Use org-babel-result-cond.
* lisp/ob-R.el (org-babel-R-evaluate-external-process): Use
  org-babel-result-cond.
  (org-babel-R-evaluate-session): Use org-babel-result-cond.
* lisp/ob-awk.el (org-babel-execute:awk): Use org-babel-result-cond.
* lisp/ob-clojure.el (org-babel-execute:clojure): Use
  org-babel-result-cond.
* lisp/ob-emacs-lisp.el (org-babel-execute:emacs-lisp): Use
  org-babel-result-cond.
* lisp/ob-fortran.el (org-babel-execute:fortran): Use
  org-babel-result-cond.
* lisp/ob-io.el (org-babel-io-evaluate): Use org-babel-result-cond.
* lisp/ob-java.el (org-babel-execute:java): Use org-babel-result-cond.
* lisp/ob-lisp.el (org-babel-execute:lisp): Use org-babel-result-cond.
* lisp/ob-maxima.el (org-babel-execute:maxima): Use
  org-babel-result-cond.
* lisp/ob-picolisp.el (org-babel-execute:picolisp): Use
  org-babel-result-cond.
* lisp/ob-python.el (org-babel-python-evaluate-external-process): Use
  org-babel-result-cond.
  (org-babel-python-evaluate-session): Use org-babel-result-cond.
* lisp/ob-scala.el (org-babel-scala-evaluate): Use org-babel-result-cond.
* lisp/ob-sh.el (org-babel-sh-evaluate): Use org-babel-result-cond.
* lisp/ob-shen.el (org-babel-execute:shen): Use org-babel-result-cond.
* lisp/ob-sql.el (org-babel-execute:sql): Use org-babel-result-cond.
* lisp/ob-sqlite.el (org-babel-execute:sqlite): Use
  org-babel-result-cond.