Bug 677300 - Add 3 px padding above and below the searchbar

This got dropped accidentally in the patch for bug 709428.

(cherry picked from commit 359b7b45d33c1f9b02b0ba56bc25914c7346cd89)
EDateEdit: Force 24 hour format for locales without am/pm equivalents

Some locales do not provide equivalents for am/pm (the "%p" of strftime),
thus when the user has set 12 hour format in Preferences, then the am
and pm times are the same, which confuses the widget, especially
in the appointment editor, making it hard (like impossible) to enter
pm times by selection in the time combo. An example locale is de_DE.
Bug 722352 - libresolv does not exist on FreeBSD

Just a couple leftovers in mail/Makefile.am.  Not needed anymore.

(cherry picked from commit ced4884e95b4bd57928a7cb5bb4f00ebdc3edec1)
Bug #702958 - Crash on attachment add or remove