use short version string on bootscreen

bin/platformio-custom.py

@@ -9,11 +9,12 @@ from readprops import readProps
 Import("projenv")
 
 prefsLoc = projenv["PROJECT_DIR"] + "/version.properties"
-verStr = readProps(prefsLoc)
-print("Using meshtastic platform-custom.py, firmare version " + verStr)
+verObj = readProps(prefsLoc)
+print("Using meshtastic platform-custom.py, firmare version " + verObj['long'])
 # print("path is" + ','.join(sys.path))
 
 # General options that are passed to the C and C++ compilers
 projenv.Append(CCFLAGS=[
-    "-DAPP_VERSION=" + verStr
+    "-DAPP_VERSION=" + verObj['long'],
+    "-DAPP_VERSION_SHORT=" + verObj['short']    
 ])