fixed build error; added install target

Makefile

 
 all: camotion-pifaceo
 
+install: all
+	cp camotion-pifaceo /usr/local/bin/
+
 camotion-pifaceo: $(OBJ)
 	$(LINK.cpp) $(OBJ) $(OUTPUT_OPTION) $(LDLIBS)
 

src/mainclass.cpp

     }
     else if (opt == 's')
     {
-      if (arg > UINT_MAX)
+      if (arg > INT_MAX)
         return bad_value_();
       actions_.push_back([arg]() -> bool
           {