cleanup library and some basic tests. Includes, add guards to includes
diff --git a/library/ecp.c b/library/ecp.c
index aca3a2d..1bb8dfe 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -51,16 +51,17 @@
 
 #include "polarssl/ecp.h"
 
+#include <string.h>
+
 #if defined(POLARSSL_PLATFORM_C)
 #include "polarssl/platform.h"
 #else
+#include <stdlib.h>
 #define polarssl_printf     printf
 #define polarssl_malloc     malloc
 #define polarssl_free       free
 #endif
 
-#include <stdlib.h>
-
 #if defined(_MSC_VER) && !defined strcasecmp && !defined(EFIX64) && \
     !defined(EFI32)
 #define strcasecmp _stricmp