Fix platform issues regarding charsets

* IMPORTANT: A new dependency is required, boost_locale, comes with boost 1.50.0 or later
* Copying and pasting special characters should now work
* Running otclient from filepaths with special characters should work now too

src/framework/core/application.h

@@ -33,7 +33,7 @@ public:
     Application();
     virtual ~Application() {}
 
-    virtual void init(const std::vector<std::string>& args);
+    virtual void init(std::vector<std::string>& args);
     virtual void deinit();
     virtual void terminate();
     virtual void run() = 0;