Add some extra keybindings

`prelude-smart-open-line` is now bound to `M-o` as well
`prelude-start-open-line-above` is not bound to `M-O` as well

README.md

@@ -216,8 +216,8 @@ Keybinding         | Description
 -------------------|------------------------------------------------------------
 <kbd>C-c o</kbd>   | Open the currently visited file with an external program.
 <kbd>C-c g</kbd>   | Search in Google for the thing under point (or an interactive query).
-<kbd>C-S-RET</kbd> | Insert an empty line above the current line and indent it properly
-<kbd>S-RET</kbd>   | Insert an empty line and indent it properly (as in most IDEs).
+<kbd>C-S-RET</kbd> or <kbd>M-o</kbd> | Insert an empty line above the current line and indent it properly
+<kbd>S-RET</kbd> or <kbd>M-O</kbd> | Insert an empty line and indent it properly (as in most IDEs).
 <kbd>C-S-up</kbd>  | Move the current line up.
 <kbd>C-S-down</kbd> | Move the current line down.
 <kbd>C-c n</kbd> | Fix indentation in buffer and strip whitespace.

core/prelude-core.el

@@ -88,7 +88,7 @@ Position the cursor at it's beginning, according to the current mode."
   (move-beginning-of-line nil)
   (newline-and-indent)
   (forward-line -1)
-  (funcall indent-line-function))
+  (indent-according-to-mode))
 
 (defun prelude-smart-open-line ()
   "Insert an empty line after the current line.

core/prelude-mode.el

@@ -39,7 +39,9 @@
     (define-key map (kbd "C-c g") 'prelude-google)
     ;; mimic popular IDEs binding, note that it doesn't work in a terminal session
     (define-key map [(shift return)] 'prelude-smart-open-line)
+    (define-key map (kbd "M-o") 'prelude-smart-open-line)
     (define-key map [(control shift return)] 'prelude-smart-open-line-above)
+    (define-key map (kbd "M-O") 'prelude-smart-open-line-above)
     (define-key map [(control shift up)]  'prelude-move-line-up)
     (define-key map [(control shift down)]  'prelude-move-line-down)
     (define-key map [(meta shift up)]  'prelude-move-line-up)