cleanup library and some basic tests. Includes, add guards to includes
diff --git a/library/pkcs11.c b/library/pkcs11.c
index a5ad23c..303b7b1 100644
--- a/library/pkcs11.c
+++ b/library/pkcs11.c
@@ -27,6 +27,7 @@
 #include "polarssl/pkcs11.h"
 
 #if defined(POLARSSL_PKCS11_C)
+
 #include "polarssl/md.h"
 #include "polarssl/oid.h"
 #include "polarssl/x509_crt.h"