-announce: ast 1.4-b4, zaptel 1.4-b3, ast 1.2.14, zaptel 1.2.12

Bunch of new releases just in time for the weekend..

1.4 Series:
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Asterisk 1.4 beta 4
Zaptel 1.4 beta 3

1.2 Series:
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Asterisk 1.2.14
Zaptel 1.2.12

Readon for the actual release announcements