Adding Docblocks throughout the project and lowering the missing docblock limit in phpci.yml to zero.

Closes #692

PHPCI/Model/Build.php

@@ -46,6 +46,10 @@ class Build extends BuildBase
         return '#';
     }
 
+    /**
+     * Return a template to use to generate a link to a specific file.
+     * @return null
+     */
     public function getFileLinkTemplate()
     {
         return null;
@@ -119,6 +123,11 @@ class Build extends BuildBase
         return true;
     }
 
+    /**
+     * Get an array of plugins to run if there's no phpci.yml file.
+     * @param Builder $builder
+     * @return array
+     */
     protected function getZeroConfigPlugins(Builder $builder)
     {
         $pluginDir = PHPCI_DIR . 'PHPCI/Plugin/';
@@ -165,6 +174,11 @@ class Build extends BuildBase
         return $config;
     }
 
+    /**
+     * Return a value from the build's "extra" JSON array.
+     * @param null $key
+     * @return mixed|null|string
+     */
     public function getExtra($key = null)
     {
         $data = json_decode($this->data['extra'], true);