Add org elpa archive + update lang/org #327

Now that the org ELPA archive has https support, we can add it to
package-archives. This fixes some 'org is unavailable' errors when
installing org packages that have declared earlier versions of org as
a dependency.

This also makes installing a newer version of org-mode much simpler.
Woo!

modules/lang/org/config.el

@@ -4,9 +4,10 @@
   "The directory where org files are kept.")
 
 ;; Ensure ELPA org is prioritized above built-in org.
-(when-let* ((path (locate-library "org" nil doom--package-load-path)))
-  (setq load-path (delete path load-path))
-  (push (file-name-directory path) load-path))
+(when-let* ((path (locate-library "org" nil doom--base-load-path)))
+  (setq load-path
+        (delete (substring (file-name-directory path) 0 -1)
+                load-path)))
 
 ;; Sub-modules
 (if (featurep! +attach)  (load! +attach))