Merge pull request MedicOneSystems#425 from amvisor/content-align

s/alignCener/alignCenter

Author: thyseus

src/Column.php

@@ -406,7 +406,7 @@ public function alignRight()
  return $this;
  }
 
- public function alignCener()
+ public function alignCenter()
  {
  $this->headerAlign = 'center';
  $this->contentAlign = 'center';