Merge pull request #2 from mysensors/development

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Improved documentation and minor fixes

removed examples compiled with outdated MySensors protocol and instead
included documentation how to add self-compiled sketches
use codebender to compile sketches

I had codebender username/password included originally but compiling
works without. Codebender usage guidelines allow "usage via API".
Added technical details for controller developers regarding OTA bootloader
Merge pull request #27 from ToSa27/development

Improved documentation and usage of codebender for auto sketch compilation