Fix pagination (mixin's changed with Foundation 4.2.3)
Cleaning up functions

- Change tabs to spaces when they are not used at the start of a line
- Navigation & breadcrumbs --> inc/wpf/navigation.inc.php
- Cleaning --> inc/wpf/cleaning.inc.php
- Javascript --> inc/wpf/javascript.inc.php
- Sidebar --> inc/wpf/sidebar.inc.php
- WP-Admin --> inc/wpf/wp-admin.inc.php
- WP-Login --> inc/wpf/wp-login.inc.php
- Misc --> inc/wpf/misc.inc.php

Moved the file mail.inc.php and the folder email_template inside wpf/.
WPF v0.2.7

It has been long since I pushed a new version, but here it is :).