function isCapitalized( value ) {
	var ch;
	if ( isString( value ) && value !== '' ) {
		ch = value[ 0 ];
		return ( ch === uppercase( ch ) && ch !== lowercase( ch ) );
	}
	return false;
}
Tests if a value is a string having an uppercase first character.

@param {*} value - value to test
@returns {boolean} boolean indicating whether a value is a string with an uppercase first character

@example
var bool = isCapitalized( 'Hello' );
// returns true

@example
var bool = isCapitalized( 'WORLD' );
// returns true

@example
var bool = isCapitalized( '!' );
// returns false

@example
var bool = isCapitalized( 'salt and light' );
// returns false