Add Galician translation

[barcia]

Add Galician translation for 3a762c3

[redmunds]

@ivarcia Thanks for ageeing to the CLA and contributing to Brackets. Take a look at the instructions in the nls/README.md file for how to add a translation to Brackets -- there are a few more files that you need to update (including the README.md file itself).

It looks like you are contributing via the github.com web site, so be sure to read this section in particular.

[redmunds]

New files should have a copyright date of the current year, so 2012 should be 2014.

[barcia]

I think that now all is ok.

[ingorichter]

@ivarcia Thanks for your contribution. In order to include Galician in the 0.41 release, could you please update the copyright year to 2014 in src/nls/gl/strings.js and create a PR based on the release branch, since this is the branch we use to create the final build. That would be much appreciated. Thanks.

[redmunds]

@ivarcia It's too late to get this into Release 0.41, so you can keep this targeted for the master branch. As soon as you update the copyright years, we'll merge this into master.

[barcia]

Ok, the copyright year was updated.
Sorry for the inconveniences and thanks for your help @redmunds and @ingorichter , I'm a little newbie at this, but I am happy to translate this great application to my language.

[redmunds]

Looks good. Merging.