Add import log messages to Calendar imports

Summary: Ref T10747. When stuff goes wrong (or right) let the user know what happened.

Test Plan: {F1870139}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10747

Differential Revision: https://secure.phabricator.com/D16704

resources/sql/autopatches/20161013.cal.01.importlog.sql

@@ -0,0 +1,8 @@
+CREATE TABLE {$NAMESPACE}_calendar.calendar_importlog (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  importPHID VARBINARY(64) NOT NULL,
+  parameters LONGTEXT NOT NULL COLLATE {$COLLATE_TEXT},
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  KEY `key_import` (`importPHID`)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};