Do not bind proced with OS X
Update document and operate-on-number key bindings

Signed-off-by: Tu Do <tuhdo1710@gmail.com>
Merge pull request #554 from tuhdo/master

Update document and operate-on-number key bindings
Move the prelude tips for key-chord-mode to it's module file.
Merge pull request #555 from hbin/prelude-tips-for-key-chord-mode

Move the prelude tips for key-chord-mode to its module file.
1. Rename prelude-indent-region-or-buffer to prelude-indent-buffer-or-region.
2. Add prelude-cleanup-buffer-or-region.
3. Add prelude-untabify-buffer-or-region.
4. Update menus and kbds.
Merge pull request #558 from hbin/operations-on-buffer-or-region

Operations for buffer or region
Merge pull request #553 from toctan/proced-binding

Binding proced only in Linux
Add vkill as an alternative to proced on OS X
[Fix #559] Add an autoload for vkill
Remove redundant helm-prelude key binding code
Define prelude helm menu entry in its own module
Merge pull request #562 from toctan/prelude-helm

Move helm related code into its own module
Merge branch 'master' of https://github.com/bbatsov/prelude