intermediate, not working variant
Merge branch 'work' of https://github.com/rfqu/df4j into work
prepare to merge
CompletableFutureBase debugged
DemandDrivenActor extracted as a separate class
little simpliication
nio2 slightly refactored (to be debugged)
df4j-nio/README.md created
readme markup fixes
markup lt gt
nio refactored, not yet debugged
core and nio2 works, nio1 still fails
nio1 refactored - one step closer to ideal
all tests passed
new tests and examples added
test added