Changes API need access key

[btekbtek]

Hi

Any plans with update. Fixer.io use now plans and access keys.

Free plan for 1000/m New links should look like this: http://data.fixer.io/latest?base=GBP&symbols=AUD.

[philwinkle]

Hi there @btekbtek - feel free to submit as a PR. The change would be in this file:

https://github.com/philwinkle/Philwinkle_Fixerio/blob/master/app/code/community/Philwinkle/Fixerio/Model/Import.php#L5

[philwinkle]

Closed with #21