New Filter: pmpro_custom_advanced_settings

Add new custom fields to Advanced Settings with an array of options. Supports 'text','select', and 'textarea' as field_types.

Example:
function my_advanced_settings() {
    $custom_fields = array(
        'field1' => array(
            'field_name' => 'test1',
            'field_type' => 'text',
            'label' => 'label1',
            'description' => 'description'
        ) ,
        'field2' => array(
            'field_name' => 'tes22',
            'field_type' => 'text',
            'label' => 'label2',
            'description' => 'another descrioption'
        )
    );

    return $custom_fields;
}
add_filter('pmpro_custom_advanced_settings','my_advanced_settings');
L10n fixes
RTL support
adding brazilian portuguese translations
adding correct translations for pt_BR
Updated default database field values
Fixed tabs
Order Filtering

Enabled order filtering
Edited label
Updating orders filtering code with Harsha.
Merge pull request #95 from alexbiddle/updated_memberorder_field_defaults

Updated memberorder field defaults
Merge pull request #93 from dballona/brazilian-portuguese-translation-files

adding brazilian portuguese translations
Readme updates.
Merge branch 'dev' of github.com:strangerstudios/paid-memberships-pro into dev
Merge pull request #85 from jessicaoros/patch-1

New Filter: pmpro_custom_advanced_settings
Merge branch 'dev' of https://github.com/louy/paid-memberships-pro into louy-dev

Conflicts:
	languages/pmpro.pot
	pages/levels.php