Send emails via SMTP, not Amazon AWS' SES API.
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Merge branch 'topic-smtp-email-not-aws-api'.
Move datasource creation to module debiki-dao-rdb

And remove old manual datasource creation; BoneCP bug nowadays fixed.
Fix startup JS bug: create d.i.startup() directly

Otherwise it might not be available when `modernizr.load... complete()`
runs.
Don't `setsid` if "timeout" not specified

So CTRL-C will work.
Revert "Move datasource creation to module debiki-dao-rdb"

This reverts commit af15ba615b07d0c91854c913578625b85e45114b, because play-jdbc
depends on Play Framework and having a Play app running, don't want that.