Use less extreme language in fun questions

Update the "fun question" language to be a bit less extreme. Asking a candidate for "*the coolest*" or "*most* proud of" may make them feel like they have to find the absolute coolest, or like they are being judged for how cool their "thing" is. The more relaxed language — "*a* cool thing", "*something* you're proud of" — can be less intimidating to candidates.
greek translation added
Use less definitive language for domain sharding

With the rise of mobile (and Google SPDY) it *might* no longer given that domain sharding is still best practice, even though it's still being discussed (mobile: http://www.mobify.com/blog/domain-sharding-bad-news-mobile-performance/) (pros and cons: http://www.stevesouders.com/blog/2013/09/05/domain-sharding-revisited/)
Greek translation
Merge pull request #145 from tsevdos/Greek

Greek translation
Merge pull request #144 from bivald/master

Use less definitive language for domain sharding
Merge pull request #143 from wolever/patch-1

Use less extreme language in fun questions
Translate the latest updates to Swedish: #138, #143, #144.
Merge pull request #147 from mattiasw/master

Translate the latest updates to Swedish: #138, #143, #144.
Added question
Merge pull request #150 from arthurvr/master

Added question
removed arity

Removed arity as it has been deprecated in favor of Function.prototype.length
Update README.md
Update README.md
CSS Reset question - added reference to normalize
add css question.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
update doc from d5df1268d

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
fixed typo

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
fixed typo

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Merge pull request #152 from jsloyer/master

removed arity