dovecot: add latest upstream fixes and improvements for dovecot 2.2.2

Note:

The patch now includes all fixes and improvements for dovecot 2.2.2 from the
dovecot 2.2 branch up to http://hg.dovecot.org/dovecot-2.2/rev/0e324209d885.
dovecot: update upstream fixes for version 2.2.2

Note:

The patch now includes all fixes and improvements for dovecot 2.2.2 from the
dovecot 2.2 branch up to http://hg.dovecot.org/dovecot-2.2/rev/af9947e1e5f7.
lua-bitop: Added lua-bitop 1.0.2 - A C extension module for Lua which adds bitwise operations on numbers
dialog: Updated (1.1-20120706 -> 1.2-20130523)
ncurses: Updated (5.9-20130413 -> 5.9-20130518)