Phame - move over blog create + edit to transactions + editor

Summary: Ref T7626. Modernizes the code a bit here so we can eventually make progress on T7626 and other stuff.

Test Plan: made a blog, edited a blog, made errors - stuff looked good

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T7626

Differential Revision: https://secure.phabricator.com/D12849

resources/sql/autopatches/20150514.phame.blog.xaction.sql

@@ -0,0 +1,19 @@
+CREATE TABLE {$NAMESPACE}_phame.phame_blogtransaction (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  authorPHID VARBINARY(64) NOT NULL,
+  objectPHID VARBINARY(64) NOT NULL,
+  viewPolicy VARBINARY(64) NOT NULL,
+  editPolicy VARBINARY(64) NOT NULL,
+  commentPHID VARBINARY(64) DEFAULT NULL,
+  commentVersion INT UNSIGNED NOT NULL,
+  transactionType VARCHAR(32) COLLATE {$COLLATE_TEXT} NOT NULL,
+  oldValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  newValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  contentSource LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  metadata LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  UNIQUE KEY `key_phid` (`phid`),
+  KEY `key_object` (`objectPHID`)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};