#2103359 by func0der, johnnybgoode. Backup and migration is ignoring max_execution_time with php_cli

Conflicts:
	backup_migrate.module

This reverts commit c8a2f262.

Fixed another spot where having multiple modules declare the same item leads to corruption rather than overriding.

Backed off the 'highest level' claim for offsite backups, because really, there is always something more you can do.

Conflicts:
	includes/destinations.file.inc

#1503202 Suhosin refuses sending mail because of to many new lines in mail header (possible attacker)

Updating last backup time before attempting backup to prevent error conditions causing too many backup attempts

Conflicts:

	backup_migrate.css
	backup_migrate.js