babel: adding buffer-wide header arguments behind #+BABEL:

babel: adding buffer-wide header arguments behind #+BABEL:

e.g. placing the following at the top of your buffer

will result in all source-code blocks in the buffer having their
:session header argument set to "example"

* contrib/babel/lisp/org-babel-lob.el (org-babel-lob-execute): now
  included buffer-wide header arguments in lob header arguments

* contrib/babel/lisp/org-babel.el (org-babel-params-from-buffer): new
  function for grabbing header arguments from the top of the buffer

  (org-babel-parse-src-block-match): now includes buffer-wide header
  arguments

  (org-babel-parse-inline-src-block-match): now includes buffer-wide
  header arguments

  (org-babel-current-buffer-properties): buffer-local variable to hold
  buffer-wide header arguments