imake: style nits
imake: use env :std for now

There are some CPP issues here that will probably resurface under stdenv
once other compilers go away, but this works for now.
vim 7.3.972

Closes #19930.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
brew-leaves: resolve dependency graph for installed formulae only

Closes #19870.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
brew-leaves: use Formula.installed
netpbm: update URLs

http://netpbm.sourceforge.net/getting_netpbm.php

Closes #19932.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
tomcat 7.0.40

Closes #19931.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
fish 2.0

Replaces fish 1.x. fishfish recipe is left alone for now, but is a
conflict and should be uninstalled first.

Closes #19887.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Remove fishfish

Replaced by fish 2.0.
brew-dirty: simplify implementation
brew-switch: simplify implementation
Vim 7.3.973

Closes #19934.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Version: dup @version in #to_s