Fix some issues with generated pc files

 - Use #opt_prefix instead of #prefix or HOMEBREW_PREFIX
 - Use #version rather than hardcoded strings or @version
 - Unify pc file method naming
 - Use String#undent

Closes #18695.
iphotoexport: don't use ivars directly
pulseaudio: move to boneyard

pulseaudio no longer compiles correctly on any version of OS X.

Closes #18199.
New formula: yubikey-personalization

Closes #18692.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
python: Fix with-brewed-tk for tcl-tk

Fixes #18657
ipe: fix download url

Closes #18721.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
elasticsearch 0.20.6

Closes #18724.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
libinfinity doesn't compile with clang 425

Closes #18726.
dart 20444

Closes #18730.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gobby: depends on intltool

Fixes #18731.
exiftool 9.24
smartmontools 6.1
tn5250: add patch to fix segfault

Closes #18678.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gmp: 5.1.1 bottles.
libmpc: 1.0.1 bottles.
mpfr: 3.1.1-p2 bottles.
gfortran 4.8.0

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
gfortran: 4.8.0 bottles.
appengine-java-sdk 1.7.6

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
go-appengine (386) 1.7.6

Signed-off-by: Adam Vandenberg <flangy@gmail.com>