schoolsfirst project shortcuts
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.
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  brew.sh: Use `--with-iri` for `wget`
  .vimrc: Enable `g:solarized_termtrans`
  .bash_profile: Support multiple hosts in SSH completion
  Use `brew.sh` instead of `Brewfile`
Merge branch 'master' into schoolsfirst

* master:
  brew.sh: Use `--with-iri` for `wget`
  .vimrc: Enable `g:solarized_termtrans`
  .bash_profile: Support multiple hosts in SSH completion
  Use `brew.sh` instead of `Brewfile`