Improved esp8266 clients

[XayOn]

Still a WIP, but it's growing quickly and seems more stable than the current clients:

• Deleted firmware.
• Added references to actual documentations on
  flashing and file uploading
• Added a makefile
• Made clients configurable and modular, with
  a robust init system.
• Deleted virtualenv (should not be distributed this way)

It still lacks:

• More card types (rgb sliders is missing from the original lua examples)
• Better documentation on how to configure them (it's intuitive once you open config/ directory, but still...)

[edfungus]

@XayOn Is there a reason for the switch to a rst format readme?

[XayOn]

Not a reasonable one apart that I dont really know markdown, sorry.

You can change it backup but Igual tough important yo update the Docs.

Anyway, i've recently implemented pasive sensors and im unable to make them work so this implementation IS probably not ok.

Could you please check It ir document the inbox/outbox/deviceinfo part?
It seems like when i add a loop to update sensor data each X secs i loose the hability to send deviceinfo and therefore the devolver fails yo Connect...

[edfungus]

Considering

Anyway, i've recently implemented pasive sensors and im unable to make them work so this implementation IS probably not ok.

Are there going to be improvements to this pull request? I am uncertain about the state of this pull request.