hyde/hyde — pull request #100 by nud (2011-11-01 16:41:15+00:00)
Title: Add support for the $PATH environment variable.

On Unix-based system, the $PATH variable plays a central role at locating executables. Most of the time, you will be able to find your well-known executable easily by looking up in all the directories listed in $PATH, and you can even add an extra directory by altering the PATH variable in your shell beforehand.

For instance, in my own .bashrc file, the folllowing line is sufficient to be able to call anything I installed in my home directory:
```sh
export PATH=~/.local/bin:$PATH
```

This is why I added support for that handy environment variable and for a default application command in hyde. This makes it possible to not do any assumptions in the site.yaml file, making it easier to edit or generate the site on several computers with a different setup (e.g. if lessc is not installed with the same path on both machines, like what happened to me when I wanted to generate your hyde-docs site).