Clarify the quantum license (#1042)

* Clarify the license for files we have signoff on

* Update against the currently signed off files

* Remove unused and not clearly licensed headers

* Replace an #endif I accidentally removed while resolving merge conflicts

1 files changed, 17 insertions, 1 deletions

diff --git a/quantum/process_keycode/process_midi.h b/quantum/process_keycode/process_midi.h
index 58b7650c67..ccac8981a6 100644
--- a/quantum/process_keycode/process_midi.h
+++ b/quantum/process_keycode/process_midi.h
@@ -1,3 +1,19 @@
+/* Copyright 2016 Jack Humbert
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef PROCESS_MIDI_H
 #define PROCESS_MIDI_H
 
@@ -37,4 +53,4 @@ uint8_t midi_compute_note(uint16_t keycode);
 
 #endif // MIDI_ENABLE
 
-#endif
\ No newline at end of file
+#endif