Error handling changes for threading#24

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tewha wants to merge 3 commits intorobbiehanson:masterfrom

Commits on Feb 25, 2013

Error handling changes.
tewha
committed

Commits on Apr 28, 2013

Remove unused variable.
Ewan Mellor
committed
Merge pull request #1 from tipbit/error-unused-var-fix
tewha
committed