Release 20200612

• New examples
  • Read data from flash
  • Connect to WiFi (with settings in flash)
• Change the following examples to read settings from flash:
  • mqtt-blinky
  • fota
• Build all examples for 1MB flash
• Fix travis build to no longer include dummy crendentials as
  these are now read from flash

Release 20200529

• New examples
  • ARC garbage collection
  • FOTA
• Base mqtt-blinky off the ARC example
• Use linker scripts from (Nim ESP) SDK
• Add (Nim ESP) SDK version check
• Skip examples that don't compile with active Nim version
• Get rid of user_main.c and use the Nim module instead

Release 20191110

• Added gc-regions example
• Added mqtt-blinky example

Release 20191031

Initial release