Use `brew.sh` instead of `Brewfile`

Also, remove `Caskfile` since I didn’t use it.

Closes #428.
.bash_profile: Support multiple hosts in SSH completion

Useful in cases such as:

```

Host vm1 vm2 vm3 vm4
     Host localhost
     # ...
```

Simply adding a `-` to `tr` fixes this.

Closes #437.
.vimrc: Enable `g:solarized_termtrans`

It improves the display in OS X Terminal.app.

http://ethanschoonover.com/solarized/vim-colors-solarized

Ref. #425.
brew.sh: Use `--with-iri` for `wget`

The older `--enable-iri` flag is deprecated.

Closes #445.
.exports: Remove `export HOMEBREW_CASK_OPTS`

It’s not needed anymore now that the `Caskfile` has been removed.

Closes #446.
.aliases: Remove npmjs.eu reference

See the deprecation notice: http://npmjs.eu/

Closes #448.
.functions: Make `mkd` `cd` into the last directory in the list

…rather than the first.

Closes #447 and #450.
brew.sh: Install Lua the new way

Closes #453.
.osx: Update `iOS Simulator.app` path

The iOS Simulator app has been moved.

Closes #452.
brew.sh: Update `gnu-sed` option

Closes #454.
.osx: Disable Spotlight suggestions from Safari

Safari has a “Spotlight Suggestions” setting that, if left enabled, will send a copy of all search queries to Apple.

Closes #455.
.osx: Add Yosemite’s search results for Spotlight

Yosemite introduces new Spotlight search results, and if you don’t add it to `defaults write com.apple.spotlight orderedItems` it will be removed from the System Preferences → Spotlight → Search Results` list with no way to re-enable them through the System Preferences panel.

Closes #456.
Add .gdbinit
.osx: Fix comment for menu bar items

Closes #459.
.osx: Use `-array` instead of `-array ""`

Ref. #350.
.osx: Remove “increase window resize speed”

Sadly, this doesn’t work anymore in OS X 10.10.
README: Tweak `~/.path` example
brew.sh: Install speedtest_cli

Hat tip: @bramus – https://www.bram.us/2014/12/17/speedtest-cli/
Custom path