* Migrated Modest to the new send queue API

	* Migrated Modest to the new send queue API
	* Cancelling messages now sets the status of the messages to Suspended instead of Failed
	* Fixes NB#75801, Modest properly cancels sends
	* Fixes NB#79456, Modest no longer crashes when doing S&R in the background
	* Modest restarts now the suspended messages in the Outbox when clicking s&r
	* Modest restarts now the suspended messages when starting the program
	* The dimming rules are properly updated when the status of a message in the Outbox changes
	* The modest send queue now stores references to the sent and outbox folders
	* Modest waits until all the messages have been sent (or fail) when doing s&r

pmo-trunk-r4076