Added basic docs for the API

src/GeoIP2/Record/Country.php

@@ -2,8 +2,33 @@
 
 namespace GeoIP2\Record;
 
+/**
+ * Contains data for the country record associated with an IP address
+ *
+ * This record is returned by all the end points.
+ *
+ * @property int $confidence A value from 0-100 indicating MaxMind's
+ * confidence that the country is correct. This attribute is only available
+ * from the Omni end point.
+ *
+ * @property int $geonameId The GeoName ID for the country. This attribute is
+ * returned by all end points.
+ *
+ * @property string $isoCode The {@link http://en.wikipedia.org/wiki/ISO_3166-1
+ * two-character ISO 3166-1 alpha code} for the country. This attribute is
+ * returned by all end points.
+ *
+ * @property string $name The name of the country based on the languages list
+ * passed to the constructor. This attribute is returned by all end points.
+ *
+ * @property array $names An array map where the keys are language codes and
+ * the values are names. This attribute is returned by all end points.
+ */
 class Country extends AbstractPlaceRecord
 {
+    /**
+     * @ignore
+     */
     protected $validAttributes = array(
         'confidence',
         'geonameId',