If you READ the error message which you posted, the bad include statement was in the sketch INO file and not in the library H or CPP file.
So go to the INO file and replace the reference to WProgram.h with Arduino.h
If you READ the error message which you posted, the bad include statement was in the sketch INO file and not in the library H or CPP file.
So go to the INO file and replace the reference to WProgram.h with Arduino.h