.gitconfig: Remove the destructive `undopush` alias
.osx: Set standby delay to 24 hours

Hat tip: http://www.ewal.net/2012/09/09/slow-wake-for-macbook-pro-retina/
.bash_profile: Autocomplete Grunt commands

Ref. https://github.com/gruntjs/grunt-cli#shell-tab-auto-completion
.functions: Print trailing newlines when not piping the output
Add .curlrc

Closes #152.
Merge branch 'master' of github.com:mathiasbynens/dotfiles

* 'master' of github.com:mathiasbynens/dotfiles:
  Add .curlrc
  .functions: Print trailing newlines when not piping the output
  .bash_profile: Autocomplete Grunt commands
  .osx: Set standby delay to 24 hours
  .gitconfig: Remove the destructive `undopush` alias