Reconcile with jb-mr1-factory-release jb-mr1-release - do not merge

Change-Id: I8819d77d2cd0f33d9f4e5553a5b2d4639fe4ec47
Rebuild SQLITE_STAT1 table after drop operations.

The SQLITE_STAT1 table has the estimated number of rows for each table and
index, which is used to calculate a query plan for queries.

The problem is that, DROP TABLE and DROP INDEX appear to remove the
corresponding row from the stats table.  This could cause SQLite to choose
inefficient query plans.

This CL will make sure to rebuild the stats table after such operations.

Added a new boolean paramter rebuildSqliteStats to all methods that
exectue DROP TABLE/INDEX.  If it's set, they'll call updateSqliteStats() to
rebuild the contents.

Bug 7426624

Change-Id: I1c373b902856d1a24b6c0c8379899a235ee284c4
Change default sort order for email queries.

- Prioritizing "default" emails over last used emails.
- Added ordering for same domain emails as last order by.

Bug: 7183241
Bug: 7346215
Change-Id: I6a8ba3cfe08792693eec4896f16853a88713bc3f
Merge remote-tracking branch 'google/jb-mr1.1-release' into jb2