Added Default Mappings

Following Changes Have been made:

    1.  Rename KMAP -> SPECIAL_KEYS
    2.  Added Default Mappings through KEY_MAPPINGS
	so when the config is read it will change the KEY_MAPPINGS map
	which will be then used by the handler function for events.

config/kMap_test.go

@@ -5,7 +5,7 @@ import (
 )
 
 func TestGetAsciiValue(t *testing.T) {
-	for k, v := range KMAP {
+	for k, v := range SPECIAL_KEYS {
 		result, err := GetAsciiValue(k)
 		if result != v {
 			t.Errorf("Values From KMAP Failed")