* Added HTML support for Exchange 2007 and later
* Modified MessageView to show HTML parts of body (if present)
* Replace some unused convenience methods in Body to be ones that are more
useful (i.e. retrive body for a given message id)
* Made EAS sending operational
* Updated SyncManager to recognize the creation of new messages and check
for work to be done (i.e. starting Outbox sync)
* Modified MessageView to remove EmailContent.X references
* Also changed the pattern EmailContent.getContent(cursor, class) to the better
new ClassName().restore(cursor)
* Add a test of the utility to determine mime type from file name (since
EAS doesn't provide this with attachment header information)
* Fixed bug in ProviderTestUtils in which the base (EmailContent) fields weren't
being checked for equality in the various subclass equality testers. Fixed a
bug in saving emails that was caught by fixing this bug.
* clean up provider URI's in this area
* minor bugfix in EmailContent, and add auto-writeback of messageId into
saved attachments
* clean up existing attachment unit tests
* add new tests
