System
* Increase HTTP connect timeout from 500 to 800 msecs
* Clarify wording of firmware install in Web App for Flashdrive style boards
* Add optional port parameter to HTTP client library

Bug Fixes
* Fix: firmware installation for new Calliope minis
* Fix: PlugShare decompiler does not work in browser
* Fix: Stop button does not ensure that all scripts are saved to the board
* Fix: online clock example ran out of memory on ESP8266 boards due to larger microblocks.fun home page