Bug 722352 - libresolv does not exist on FreeBSD

Just a couple leftovers in mail/Makefile.am.  Not needed anymore.
Prevent GSettings from freaking out over a missing junk filter.

Boy does GSettings like to abort applications!  The default value for
the 'junk-default-plugin' key is 'Bogofilter' but if the key's mapping
function cannot find Evolution's Bogofilter integration module (it is
optional after all, so may not be installed), then indicating failure
will make GSettings abort Evolution.  So always indicate success.
Drop KRB5 dependency

It turned out that evolution itself doesn't use KRB5 directly,
thus the dependency is useless and can be dropped.
Also drop a message from the configure summary about KRB
Bug #702958 - Crash on attachment add or remove
[evolution-source-viewer] Make identity label selectable

Easier to copy&paste than write the generate UID letter by letter.
MailFolderCache: Remove 'ping' operation.

Was only used for IMAP, and CamelIMAPXServer can do this itself now.
Consequently camel_store_noop_sync() has been removed.
Update Chinese simplified translation
Updated Brazilian Portuguese translation
Bug #722415 - Memo does not support Start Date property
Bug #702709 - Do not forget to set CamelSession offline

There was missing a call to set CamelSession offline, which made
the other CamelService-s think they can do network operations,
while it wasn't true.
Bug #722698 - Crash creating a new folder
Drop libsoup-gnome dependency
Bug #721577 - Show Office field in Contact's preview
Bug #721427 - Alert about missing condition in a filter rule editor
Fix duplicate #includes
Fix return values in a few functions
Updated Norwegian bokmål translation
Updated Spanish translation
Assamese translation updated