Add --require-once option to Create-PHP-YASnippet.php

This lets users load non-native PHP functions for snippet generation.

Signed-off-by: Eric James Michael Ritz <lobbyjones@gmail.com>
Add --require-once support to payas/create-template

If you set the php-auto-yasnippet-required-files variable to a list of
files, each one will be required for snippet generation.

This makes it possible to generate snippets from userland classes and
functions.

Signed-off-by: Eric James Michael Ritz <lobbyjones@gmail.com>
Add docs for loading user code

Signed-off-by: Eric James Michael Ritz <lobbyjones@gmail.com>
Add Nate Eagleson to the list of contributors
Merge branch 'github/pr/13'

* github/pr/13:
  Add Nate Eagleson to the list of contributors
  Add docs for loading user code
  Add --require-once support to payas/create-template
  Add --require-once option to Create-PHP-YASnippet.php
Bump the version number to 2.1.0