Merge branch 'develop' of https://github.com/PHPOffice/PHPExcel into develop

Author: Mark Baker

Classes/PHPExcel.php

@@ -206,7 +206,7 @@ public function createSheet($iSheetIndex = NULL)
     }
 
     /**
-     * Chech if a sheet with a specified name already exists
+     * Check if a sheet with a specified name already exists
      *
      * @param  string $pSheetName  Name of the worksheet to check
      * @return boolean

Classes/PHPExcel/Worksheet.php

@@ -1295,7 +1295,7 @@ public function getStyles()
 	}
 
 	/**
-	 * Get default style of workbork.
+	 * Get default style of workbook.
 	 *
 	 * @deprecated
 	 * @return	PHPExcel_Style