Use its own context instead of the default context
Reduce memory usage on load by reopening database
Reduce memory usage on load by reopening database
Fix URL of Rroonga
Merge pull request #17 from myokoym/fix-url-of-rroonga

Fix URL of Rroonga

Patch by Masafumi Yokoyama. Thanks!!!
Release all resources on close
suggest: truncate temporary data on close
suggest: remove needless explicit reopen
suggest: truncate more temporary records
Merge remote-tracking branch 'upstream/master'