Up the read capacity timeout from 20 seconds to 60 seconds to keep my JAZ drive happy.  This shouldn't impact fast drives, and will keep cam from failing on very slow ones (that are spinning up, say).  20 seconds was almost long enough, but not in all cases.
Up the read capacity timeout from 20 seconds to 60 seconds to keep my
JAZ drive happy.  This shouldn't impact fast drives, and will keep cam
from failing on very slow ones (that are spinning up, say).  20
seconds was almost long enough, but not in all cases.

Suggested by: gibbs

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