Error reporting for PDFProcessor and TextProcessor2, a=chris

diff --git a/src/library/processors/PdfProcessor.php b/src/library/processors/PdfProcessor.php
index 9054cddaf..4575f8300 100755
--- a/src/library/processors/PdfProcessor.php
+++ b/src/library/processors/PdfProcessor.php
@@ -30,6 +30,7 @@
  */
 namespace seekquarry\yioop\library\processors;

+use seekquarry\yioop\configs as C;
 /**
  * Used to create crawl summary information
  * for PDF files