travis ci testing and minor cleanup

.travis.yml

@@ -17,6 +17,7 @@ before_install:
 
 install:
   - arduino --pref "boardsmanager.additional.urls=https://dl.espressif.com/dl/package_esp32_index.json" --save-prefs
+  - arduino --pref "custom_FlashFreq=ttgo-lora32-v1_80" --save-prefs
   - arduino --install-boards esp32:esp32 --save-prefs
   - ln -s $PWD/libraries/SondeLib /usr/local/share/arduino/libraries/SondeLib
   - ln -s $PWD/libraries/SX1278FSK /usr/local/share/arduino/libraries/SX1278FSK

libraries/SondeLib/DFM.cpp

@@ -147,7 +147,7 @@ int DFM::hamming(uint8_t *ham, int L, uint8_t *sym) {
 DFM::DFM() {
 }
 
-void DFM::printRaw(char *label, int len, int ret, uint8_t *data)
+void DFM::printRaw(const char *label, int len, int ret, const uint8_t *data)
 {
 	Serial.print(label); Serial.print("(");
 	Serial.print(ret);

libraries/SondeLib/aprs.cpp

@@ -9,7 +9,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <stdlib.h>;
+#include <stdlib.h>
 //#include <arpa/inet.h>
 //#include <sys/socket.h>
 #include <math.h>

libraries/SondeLib/aprs.h

@@ -4,7 +4,7 @@
 
 enum IDTYPE { ID_DFMDXL, ID_DFMGRAW, ID_DFMAUTO };
 
-typedef struct st_feedinfo {
+struct st_feedinfo {
 	bool active;
 	int type;	// 0:UDP(axudp), 1:TCP(aprs.fi)
 	char host[64];