new blocks

hi david
it's really nice ardublock still going ahead.
i ve also make some block.
i begin to use in a better way github

i ve done this :
- add portb, portc, portd, pinb, pinc, pind
- add neopixel clear to clear all led
- add "servo plus" to duinoedu to fixe the sped of rotation.
- replace serial println by serial print like this we can chosse if we want a print or println
- i add the block   unsigned_long who was in a old version, but it was deleted

at last, i just make a git fetch upstream, git merge upstream/master
so i make a commit to resolve the conflict.
i don' t know if i have to do like this to resolve the conflict

thanks for regards
karl THOMAS