Update platform in default environment to 1.8.0

Firmware/platformio.ini

@@ -9,15 +9,6 @@
 # A sign `#` at the beginning of the line indicates a comment
 # Comment lines are ignored.
 
-# Simple and base environment
-# [env:mybaseenv]
-# platform = %INSTALLED_PLATFORM_NAME_HERE%
-# framework =
-# board =
-#
-# Automatic targets - enable auto-uploading
-# targets = upload
-
 [platformio]
 src_dir = IotaWatt
 env_default = iotawatt
@@ -34,8 +25,8 @@ lib_deps =  [email protected]
 
 # default environment, compile and upload using; `$ pio run -t upload`
 [env:iotawatt]
-platform = [email protected]  ; v2.4.1
-;platform = [email protected]  ; v2.4.2
+;platform = [email protected]  ; v2.4.1
+platform = [email protected]  ; v2.4.2
 build_unflags = -Wall
 ;build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY ; LWIP 2
 build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH ;LWIP 2
@@ -46,10 +37,7 @@ lib_deps = ${common.lib_deps}
 upload_speed = 921600
 monitor_speed = 115200
 
-# Staging enviroment using latest espressive Arduino core, see
-# http://docs.platformio.org/en/latest/platforms/espressif8266.html#using-arduino-framework-with-staging-version
-
-# Prior the compiling run: `$ platformio platform install https://github.com/platformio/platform-espressif8266.git#feature/stage`
+# alternate environment
 # compile and uplod using: `$ pio run -t upload -e iotawatt_staging
 [env:iotawatt_staging]
 platform = [email protected]  ; v2.4.2