drop version qualifier

This should help keep version.h stable.

    x.y.z-dev
    => major, minor, patch, qual
    == x, y, z, -dev

But we do not need -dev anymore.
diff --git a/include/json/version.h b/include/json/version.h
index 380827e..ca5c283 100644
--- a/include/json/version.h
+++ b/include/json/version.h
@@ -2,15 +2,13 @@
 // and "version.h.in" files.
 // Run CMake configure step to update it.
 #ifndef JSON_VERSION_H_INCLUDED
-#define JSON_VERSION_H_INCLUDED
+# define JSON_VERSION_H_INCLUDED
 
-#define JSONCPP_VERSION_STRING "0.7.0"
-#define JSONCPP_VERSION_MAJOR 0
-#define JSONCPP_VERSION_MINOR 7
-#define JSONCPP_VERSION_PATCH 0
-#define JSONCPP_VERSION_QUALIFIER
-#define JSONCPP_VERSION_HEXA                                                   \
-  ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) |             \
-   (JSONCPP_VERSION_PATCH << 8))
+# define JSONCPP_VERSION_STRING "0.7.0"
+# define JSONCPP_VERSION_MAJOR 0
+# define JSONCPP_VERSION_MINOR 7
+# define JSONCPP_VERSION_PATCH 0
+# define JSONCPP_VERSION_QUALIFIER
+# define JSONCPP_VERSION_HEXA ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) | (JSONCPP_VERSION_PATCH << 8))
 
 #endif // JSON_VERSION_H_INCLUDED