`pod install` fails if pod not used by concrete target

[openreply-dleinhaeuser]

cocoapods version 1.2.1
cocoapods-rome version 0.8.0

Given a Podfile like the following:

platform :osx, '10.10'
use_frameworks!

plugin 'cocoapods-rome'

pod 'XcodeEditor'

I would expect pod install to download the XcodeEditor pod and install it in the Rome folder.
Instead I get the following error:

> bundle exec pod install
Analyzing dependencies
[!] The dependency `XcodeEditor` is not used in any concrete target.

[orta]

This is CocoaPods raising an error before Rome can run it's pre-installer. To make this work, Rome would need to suppress this warning.

[jugutier]

@openreply-dleinhaeuser you can get your frameworks with just a Podfille but you have to specify some target on it even if it doesn't exist just to get cocoapods to not complain.
See my example here: #67