IE8 + utf-8 problem

[plentz]

if you compress ivaynberg/select2 code, it will generate invalid code for IE8(even leaving :screw_ie8 = false - the default)

https://github.com/ivaynberg/select2/blob/master/select2.js#L101

[plentz]

Found the problem: IE fails to handle some utf-8 chars(like that one) in object literals without the quotes. To solve the problem, I had to use :quote_keys => true.

[plentz]

cc @ivaynberg just in case somebody open an issue about using rails + asset pipeline + uglifier

[plentz]

As a permanent solution, I think we should set :quote_keys => true as default when :screw_ie8 = false. What do you think?

[plentz]

cc @argerim just in case somebody open an issue about using rails + asset pipeline + uglifier

[lautis]

This seems to be related to #47, although it might be that IE8 has different rules for valid identifiers.

[plentz]

awesome!

[plentz]

related #67