Remove tpope/vim-endwise

Why? Two primary reasons

- my muscle memory of typing 'end' is very tenacious
- I like typing end. It's like the period at the end of the code
  sentence I'm writing. A breathing time to think about what comes next.
Map CtrlP commands to top level Rails directories

CtrlP is fast, really fast. Rather than link into app/views and
app/controllers, etc. It's better to have more leader keys available
than to deep link in the project.

For example: <leader>pc is better used searching "config" than
"app/controllers"