Bump revisions on x264 dependents
ffmbc: add 0.7-rc8 bottle.
libav: update 9.11 bottle.
ffmpeg: update 2.1.4 bottle.
avidemux: add 2.6.4 bottle.
redis 2.8.8
redis: update 2.8.8 bottle.

Closes #27863.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
ngIRCd 21.1
ngircd: add 21.1 bottle.

Closes #27867.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
ngIRCd: Set "sysconfdir" to #{HOMEBREW_PREFIX}/etc/ngircd

This prevents Homebrew from linking the configuration files into
the "sysconfdir" which would break updates when the user modified
the configuration file(s) ...

Signed-off-by: Alexander Barton <alex@barton.de>
ngircd: update 21.1 bottle.

Closes #27869.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
clasp 3.0.1
clasp: add 3.0.1 bottle.

Closes #27871.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
freetype: explicity disable harfbuzz

Harfbuzz depends on freetype. Homebrew can't and probably never will
handle circular dependencies such as this.
avidemux: use install_symlink
clozure-cl: modernize formula
qt: use install_symlink
qt5: use install_symlink
htmlcompressor: use install_symlink
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