Make filename a private variable.
Added M26 to abort print and then reload file.
Put gcodes in Player.cpp in the right order.
Merge pull request #242 from wolfmanjm/upstreamedge

Upstreamedge
add comments to M204
Merge pull request #234 from TopherMan/feature/M26

Feature/m26
convert playing counts to unsigne dlong
Show printed sd filename even if started from console
fix typo
Merge pull request #244 from wolfmanjm/fix/lcd-progress

Fix/lcd progress
Add M665 to adjust arm length and arm radius for kossel arm solution
Add M666 as replacement for M206
Add M665 Znnn to adjust gamma_max for delta Z