WordPress 4.0 Customizer Controls
https://gist.github.com/devinsays/e9c6754340a5253c3ec9

function prefix_customizer_register( $wp_customize ) {

$wp_customize->add_panel( 'panel_id', array(
'priority' => 10,
'capability' => 'edit_theme_options',
'theme_supports' => '',
'title' => __( 'Example Panel', 'textdomain' ),
'description' => __( 'Description of what this panel does.', 'textdomain' ),
) );

$wp_customize->add_section( 'section_id', array(
'priority' => 10,
'capability' => 'edit_theme_options',
'theme_supports' => '',
'title' => __( 'Example Section', 'textdomain' ),
'description' => '',
'panel' => 'panel_id',
) );

$wp_customize->add_setting( 'url_field_id', array(
'default' => '',
'type' => 'theme_mod',
'capability' => 'edit_theme_options',
'transport' => '',
'sanitize_callback' => 'esc_url',
) );

$wp_customize->add_control( 'url_field_id', array(
'type' => 'url',
'priority' => 10,
'section' => 'section_id',
'label' => __( 'URL Field', 'textdomain' ),
'description' => '',
) );

$wp_customize->add_setting( 'email_field_id', array(
'default' => '',
'type' => 'theme_mod',
'capability' => 'edit_theme_options',
'transport' => '',
'sanitize_callback' => 'sanitize_email',
) );

$wp_customize->add_control( 'email_field_id', array(
'type' => 'email',
'priority' => 10,
'section' => 'section_id',
'label' => __( 'Email Field', 'textdomain' ),
'description' => '',
) );

$wp_customize->add_setting( 'password_field_id', array(
'default' => '',
'type' => 'theme_mod',
'capability' => 'edit_theme_options',
'transport' => '',
'sanitize_callback' => 'sanitize_text_field',
) );

$wp_customize->add_control( 'password_field_id', array(
'type' => 'password',
'priority' => 10,
'section' => 'section_id',
'label' => __( 'Password Field', 'textdomain' ),
'description' => '',
) );

$wp_customize->add_setting( 'textarea_field_id', array(
'default' => '',
'type' => 'theme_mod',
'capability' => 'edit_theme_options',
'transport' => '',
'sanitize_callback' => 'esc_textarea',
) );

$wp_customize->add_control( 'textarea_field_id', array(
'type' => 'textarea',
'priority' => 10,
'section' => 'section_id',
'label' => __( 'Textarea Field', 'textdomain' ),
'description' => '',
) );

$wp_customize->add_setting( 'date_field_id', array(
'default' => '',
'type' => 'theme_mod',
'capability' => 'edit_theme_options',
'transport' => '',
'sanitize_callback' => ''
) );

$wp_customize->add_control( 'date_field_id', array(
'type' => 'date',
'priority' => 10,
'section' => 'section_id',
'label' => __( 'Date Field', 'textdomain' ),
'description' => '',
) );

$wp_customize->add_setting( 'range_field_id', array(
'default' => '',
'type' => 'theme_mod',
'capability' => 'edit_theme_options',
'transport' => '',
'sanitize_callback' => 'intval',
) );

$wp_customize->add_control( 'range_field_id', array(
'type' => 'range',
'priority' => 10,
'section' => 'section_id',
'label' => __( 'Range Field', 'textdomain' ),
'description' => '',
'input_attrs' => array(
'min' => 0,
'max' => 100,
'step' => 1,
'class' => 'example-class',
'style' => 'color: #0a0',
),
) );

}
add_action( 'customize_register', 'prefix_customizer_register' );