Do not disconnect on submitting an expired block
Merge remote-tracking branch 'upstream/master'
Merge pull request #22 from dave-andersen/master

Do not disconnect after submitting an expired block
Overhaul of threading in simpleminer to improve concurrency.
Jump nonce to avoid dupes if threads de-synchronized
Merge pull request #23 from dave-andersen/master

Overhaul of threading in simpleminer to improve concurrency.
Possible fix for restarts and invalid share errors
Make sure to trigger the re-get code after 3 failures
Merge pull request #24 from dave-andersen/master

Making simpleminer more robust to scratchpad sync errors
More robust failure masking - complete miner restart after 10 submission failures
Merge pull request #25 from dave-andersen/master

More robust failure masking - complete miner restart after 10 submission...
Merge branch 'master' into GUI