Fixed the ed25519 include path and using proper c include

CMakeLists.txt

@@ -16,7 +16,7 @@ find_package(DataPipes REQUIRED)
 include_directories(${DataPipes_INCLUDE_DIR})
 
 find_package(Ed25519 REQUIRED)
-include_directories(${ed25519_INCLUDE_DIR})
+include_directories(${Ed25519_INCLUDE_DIR})
 
 set(TARGET_LIBRARIES)
 set(FEATURE_LOGGING ON)

src/protocol/CryptHandler.cpp

@@ -1,6 +1,6 @@
 //#define NO_OPEN_SSL /* because we're lazy and dont want to build this lib extra for the TeaClient */
 #define FIXEDINT_H_INCLUDED /* else it will be included by ge */
-#include <stdint.h>
+#include <cstdint>
 #include <ed25519/ge.h>
 #include <ed25519/ed25519.h>
 #include <mutex>