Static Pages don't load, unhandled promise error thrown

[ErisDS]

Issue Summary

When trying to visit the URL for a published static page (with or without a trailing slash) the page spins and eventually timesout.

Steps to Reproduce

1. Create a new static page and publish it
2. Try to visit the page via the URL

Server console outputs the following error message:

[promises] Unhandled rejections: 1
[ { reason: [TypeError: Cannot call method 'hasOwnProperty' of undefined],
    message: 'TypeError: Cannot call method \'hasOwnProperty\' of undefined',
    stack: 
     [ '=== Unhandled rejection escaped at ===',
       '    at Object.read (/Users/hannah/Ghost/Ghost/core/server/api/settings.js:129:53)',
       '    at /Users/hannah/Ghost/Ghost/core/server/controllers/frontend.js:74:34',
       '  --- new call stack ---',
       '    at Object.read (/Users/hannah/Ghost/Ghost/core/server/api/settings.js:129:20)',
       '    at /Users/hannah/Ghost/Ghost/core/server/controllers/frontend.js:74:34',
       '  --- new call stack ---',
       '    at Object.read (/Users/hannah/Ghost/Ghost/core/server/api/settings.js:129:20)',
       '    at /Users/hannah/Ghost/Ghost/core/server/controllers/frontend.js:74:34',
       '=== Caused by reason ===',
       'TypeError: Cannot call method \'hasOwnProperty\' of undefined',
       '    at /Users/hannah/Ghost/Ghost/core/server/controllers/frontend.js:76:48' ] } ]

Technical details:

• Ghost Version: master (latest commit: 365b4ca)
• Node Version: 0.10.18