remove "using namespace" statements from header files

"using namespace" in headers also affects all files that include the
header which is unwanted and unexpected in most cases.

1 files changed, 2 insertions, 0 deletions

diff --git a/dw/textblock.cc b/dw/textblock.cc
index 81ad7113..94e3d8ea 100644
--- a/dw/textblock.cc
+++ b/dw/textblock.cc
@@ -26,6 +26,8 @@
 #include <stdio.h>
 #include <limits.h>
 
+using namespace lout;
+
 namespace dw {
 
 int Textblock::CLASS_ID = -1;