[Vim] Add completion for :Note command
[General] Remove obsolete Rake tasks
[Slate] Improve layouts
[Vim] Improve Markdown newline expansions
[Vim] Do not associate Markdown and HTML formats

Since I'm automatically recompiling Markdown, the presence of an HTML
file with the same name was triggering compilation of a PDF. Disabling
for now. Figure it out later.
[Vim] Add <Space>I map to edit .gitignore
[Vim] Remove erroneous CtrlP setting
[Vim] Install Puppet runtime files
[OSX] Remove OS X config files

These are moving to Boxen.