Fix function keys

[jacobboland]

This fixes part of issue #65. enable_standard_function_keys did not work with boolean value. It also requires a reboot.

[dgoodlad]

Hmm:

~ » defaults read-type NSGlobalDomain com.apple.keyboard.fnState
Type is boolean
~ » defaults read NSGlobalDomain com.apple.keyboard.fnState
1

We also have logic to translate true and false to the integer values here: https://github.com/boxen/puppet-boxen/blob/master/manifests/osx_defaults.pp#L29-L32

Can you show me an example of how this didn't work before, by probing with defaults read before and after?

[jacobboland]

Running boxen, I received this message.

Error: Could not find class osx::global::enable_standard_function_keys

After reading a bit, the examples I found were using an integer value instead of boolean. Upon changing it, boxen changed the fnState bit as expected. The function keys worked as expected following a reboot.

~: defaults read-type NSGlobalDomain com.apple.keyboard.fnState
Type is integer

I'm running OS X 10.9.5