fixed dropdown bug

Due to updates (jQuery and Bootstrap), dropdowns stopped working because
of missing "data-target" (see
http://twitter.github.com/bootstrap/javascript.html#dropdowns)
Revert "fixed dropdown bug"

This reverts commit c89d68fc7c26dbb46b2a5aeb926f1c404688426d.
fixed dropdown bug 

when a dropdown parent contains a link itself, a data-target="#" is needed
Re-generate roots.pot file and update Brazilian Portuguese translation files
Merge pull request #536 from weslly/master

Re-generate roots.pot and update Brazilian Portuguese translation files
Add License URI
Merge pull request #535 from limenet/master

Allow dropdowns to have a regular anchor
Consistent use of PHP alternative syntax
Merge pull request #539 from retlehs/alternative_syntax

Consistent use of PHP alternative syntax
Update Changelog
Cleanup clean up, reorganization
Add new theme documentation
Update to Bootstrap 2.1.1, jQuery 1.8.1, Modernizr 2.6.2
Update to Bootstrap 2.1.1, jQuery 1.8.1, Modernizr 2.6.2
Update CHANGELOG
Add has_nav_menu() check for navigation menus
Add jQuery version to wp_register_script
Fixes #542 - Simplify nav & add 3rd level dropdown
Roots 6.0.0
Support for dividers & nav header classes