Add internal documentation about Fibers
[ARM] Implement Fibers
Merge pull request #713 from jpf91/arm-3

[ARM] implement fibers & Add internal Fiber documentation
Replace naked Read-Modify-Write ops on shared values which will be banned.
Merge pull request #714 from AndrejMitrovic/Prepare3672

Replace naked Read-Modify-Write ops on shared values which will be banned.
Remove uses of the comma operator
Merge pull request #716 from yebblies/commaop

[trivial] Remove uses of the comma operator
Initial implementation (Posix support mostly)