0.4.3 Fix #92: omg - for the last couple of weeks the official builds were

all using US frequencies.  This build fixes this (and makes the build
system cleaner in general).

If you are building your own builds in the IDE you'll need to start
setting an environment variable called COUNTRY to your two letter
country code (or leave unset to get US frequencies).  See new comment
in platformio.ini.

bin/build-all.sh

@@ -6,6 +6,10 @@ source bin/version.sh
 
 COUNTRIES="US EU433 EU865 CN JP"
 #COUNTRIES=US
+#COUNTRIES=CN
+
+BOARDS="ttgo-lora32-v2 ttgo-lora32-v1 tbeam heltec"
+#BOARDS=tbeam
 
 OUTDIR=release/latest
 
@@ -24,23 +28,21 @@ function do_build {
     SRCBIN=.pio/build/$ENV_NAME/firmware.bin
     SRCELF=.pio/build/$ENV_NAME/firmware.elf
     rm -f $SRCBIN 
-    pio run --environment $ENV_NAME # -v
+
+    # The shell vars the build tool expects to find
+    export HW_VERSION="1.0-$COUNTRY"
+    export APP_VERSION=$VERSION
+    export COUNTRY
+
+    pio run --jobs 4 --environment $ENV_NAME # -v
     cp $SRCBIN $OUTDIR/bins/firmware-$ENV_NAME-$COUNTRY-$VERSION.bin
     cp $SRCELF $OUTDIR/elfs/firmware-$ENV_NAME-$COUNTRY-$VERSION.elf
 }
 
 for COUNTRY in $COUNTRIES; do 
-
-    HWVERSTR="1.0-$COUNTRY"
-    COMMONOPTS="-DAPP_VERSION=$VERSION -DHW_VERSION_$COUNTRY -DHW_VERSION=$HWVERSTR -Wall -Wextra -Wno-missing-field-initializers -Isrc -Os -DAXP_DEBUG_PORT=Serial"
-
-    export PLATFORMIO_BUILD_FLAGS="$COMMONOPTS"
-
-    #do_build "tbeam0.7"
-    do_build "ttgo-lora32-v2"
-    do_build "ttgo-lora32-v1"
-    do_build "tbeam"
-    do_build "heltec"
+    for BOARD in $BOARDS; do
+        do_build $BOARD
+    done
 done
 
 # keep the bins in archive also