Platformio update#2

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ikks wants to merge 4 commits intosparkfun:masterfrom

ikks:platformio-update

Commits on May 4, 2019

Examples adapted in order to run flawlessly with Platformio
Igor Támara
committed
Documentation referral to Platform and doc links update
Igor Támara
committed
Added needed Arduino Library with Platformio
Igor Támara
committed
Fixed library import
Igor Támara
committed