Modified:

fancy-modeline.el

* fixed the fact that variable my-mode-line-separator was still being
  called despite having been removed from the codebase, which caused
  emacs to fail to initialise anything after that point properly.
functions.el

* added the function kill-active-buffer
* fixed typo in 'indent-buffer' (s/delet/delete/)

keys.el

* rebound C-x C-k to kill-buffer, and C-x k to kill-active-buffer: I rarely kill inactive buffers!

fancy-modeline.el

* Insert/Overwrite mode indicator: overwrite indicator nice and brightly coloured!
* moved pipe separators around so there are never two in a row with
  nothing in between