Sync Mk with ports
Prune 2 obsolete ports

FreeBSD Ports maintainers have already deleted the following:
  lang/open-cobol
  security/yassl
Update devel/libtool to version 2.4.2_3
Update archivers/libzip to version 0.11.2_1
Update devel/libltdl to version 2.4.2_3
Update devel/pcre to version 8.34_1
Update audio/libcdaudio to version 0.99.12p2_3
Update graphics/tiff to version 4.0.3_2
Update textproc/exempi to version 2.1.1_1
Update devel/gettext to version 0.18.3.1_1
Tweak lang/php5 version 5.4.28
Tweak lang/php55 version 5.5.12
Tweak lang/php53 version 5.3.28_2
Update www/neon29 to version 0.29.6_6
Update devel/ncurses to version 5.9.20140503
Update graphics/imlib to version 1.9.15_16
Update audio/libsndfile to version 1.0.25_4
Update databases/freetds to version 0.64_10,1
Tweak security/krb5 version 1.12.1_3
Update devel/boost-libs to version 1.55.0_2