The following steps should get you up and running with
this block template code.

* DO NOT PANIC!

* Unzip the archive and read this file

* Rename the google_hangout/ folder to the name of your module (eg "widget").
The module folder MUST be lower case. You should check the Moodle Plugins
Database at https://moodle.org/plugins to make sure that
your name is not already used by an other block. Registering the plugin
name @ http://moodle.org/plugins will secure it for you.

* Edit all the files in this directory and its subdirectories and change
all the instances of the string "google_hangout" to your module name
(eg "widget"). If you are using Linux, you can use the following command
$ find . -type f -exec sed -i 's/google_hangout/widget/g' {} \;

* Rename the file lang/en/google_hangout.php to lang/en/widget.php
where "widget" is the name of your module. Also rename block_google_hangout.php
in the main directory to block_widget.php

* Place the widget folder into the /block folder of the moodle
directory.

* Go to Settings > Site Administration > Development > XMLDB editor
and modify the module's tables.

* Modify version.php and set the initial version of you module.

* Visit Settings > Site Administration > Notifications, you should find
the module's tables successfully created

* Go to Site Administration > Plugins > Blocks > Manage blocks
and you should find that this google_hangout has been added to the list of
installed modules.

* You may now proceed to run your own code in an attempt to develop
your module. You will probably want to modify block_newmodule.php
and edit_form.php as a first step. Check db/access.php to add
capabilities.

We encourage you to share your code and experience - visit http://moodle.org

Good luck!