include nlohmann/json in inja directly

src/inja.hpp

@@ -33,16 +33,12 @@ SOFTWARE.
 #define PANTOR_INJA_VERSION_PATCH 1
 
 
-#ifndef NLOHMANN_JSON_HPP
-	static_assert(false, "nlohmann/json not found.");
-#endif
-
-
 #include <algorithm>
 #include <fstream>
 #include <iostream>
 #include <locale>
 #include <map>
+#include <nlohmann/json.hpp>
 #include <regex>
 #include <string>
 #include <sstream>

src/nlohmann/LICENSE.MIT

@@ -0,0 +1,21 @@
+MIT License 
+
+Copyright (c) 2013-2017 Niels Lohmann
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.