[RFC] Split notmuch_database_close into two functions

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+From: Justus Winter <4winter@informatik.uni-hamburg.de>\r
+To: notmuch@notmuchmail.org\r
+Subject: [RFC] Split notmuch_database_close into two functions\r
+Date: Wed, 21 Mar 2012 01:55:04 +0100\r
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+\r
+I propose to split the function notmuch_database_close into\r
+notmuch_database_close and notmuch_database_destroy so that long\r
+running processes like alot can close the database while still using\r
+data obtained from queries to that database.\r
+\r
+I've updated the tools, the go, ruby and python bindings to use\r
+notmuch_database_destroy instead of notmuch_database_close to destroy\r
+database objects.\r
+\r
+Cheers,\r
+Justus\r