groundwork 7.x-1.0-beta2

- Added files .gitignore and CHANGELOG.txt.
- Changed wireframes to block background guides. Site admins must revisit theme settings page.
- Changed link padding in navigation bar from "0.8em 3em 0.8em 0" to "0.8em 1.5em". There will be more sites that will benefit from an equal horizontal padding.
- Fixed some indentations in template.process.inc to adhere to Drupal coding standards.
- Issue filed by PedroMiguel: #1404652: Provide option to turn on/off attribution in theme settings page
- Added if statement to hide section#sector-extras (if supplement region and/or appendix region is not in use)
- More descriptive README.txt.
- Fixed bug in theme settings in subwork.info file
- Added more tips and comments in the local.css and local-blank.css.
- Added warning on breaking the layout if wrong prefix and suffix be chosen in Skinr setting.
- Changed #branding and #footer-section from <div> to <section> for better html5 document outline.
- Added support for secondary menu.

This release has a bug which was fixed a few minutes after in groundwork 7.x-1.0-beta3.