Site updates 0.55

Created 8/11/2012, updated 5/18/2017

site
updates
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8241705 unicorn.rb: simplify and tidy
ea72138 script/deploy: big refactor using `run` function
4bb7f28 Add memcache-dump.rb script for diagnostic purposes
70c62db Update a stale comment
be2bb50 Upgrade to jQuery 1.8.0