When Jenkins restarts, global Jenkins settings for Xcode went back to their defaults. Now when constructing the DescriptorImpl, call the load() method which will load the settings and fix the issue.
Fixing 'XCode' typo to the proper Xcode.
Merge pull request #23 from jpm/master

Typo: XCode -> Xcode. Merged 'immediately' ;)
Merge pull request #21 from dlvenable/load-global-configuration

Fix for global settings not reloading