Use opt helpers instead of hardcoded paths
kafka: use Java 7 requirement
ceylon: use Java 7 requirement
liblwgeom: use lib.install

No evidence of this failure and I can't reproduce it (also it works in
the postgis formula).
mimms: remove inaccurate comment
passenger: use Homebrew's openssl
nginx: simplify code for passenger support

We don't need to protect against passenger not being found.
vim 7.4.488