Chore/extract reused hash key

[rud]

Small cleanups, hope they are considered helpful.

Feedback most welcome.

[Houdini]

Hello, there is a problem in rails 4.1.1 if you use symbols for cookies keys, so we change it to strings.
In this circumstances your commit become much more relevant.

Could you please change following:

1. NEED_AUTHENTICATION should define string not symbol (please check last commits)
2. Please add small comment which explains that you use this as cookies key. Or maybe it would be better to rename NEED_AUTHENTICTION to more descriptive name, like COOKIE_KEY

Thanks

[rud]

Great feedback, thank you.

I've force-pushed an update to my repository fixing the cookie-key to be a string instead of a hash. Unfortunately the github UI has not been correctly updated to reflect this. If you try the branch locally it will merge without any problems.

[Houdini]

Thanks