Update pt.xliff

Tidying misspelling.
Added missing dutch translation
Fixed typo
Remove non portuguese translation and adding a verb.

Correcting non portuguese text on 'attach-the-file-to-field' translation; and adding the verb "should" missing on should-be-on-page.
fixed ja.xliff
Merge pull request #160 from dohzoh/mink-extension-japanese

fixed ja.xliff
Merge pull request #159 from newtonwagner/patch-1

Remove non portuguese translation and adding missing a verb.
Merge pull request #151 from WouterJ/patch-1

Added missing dutch translation
Merge pull request #149 from Fuhrmann/patch-1

Update pt.xliff
README.md: fixed i18n links

This one doesn't work as well, but I couldn't find the file in the cucumber/gherkin repo:
https://github.com/cucumber/gherkin/blob/master/lib/gherkin/i18n.yml

I tried looking in 2013 revisions, but with no luck. Perhaps the link was always broken?
Merge pull request #162 from MacDada/patch-1

README.md: fixed i18n links
Updated some links in the readme
Removed the sponsor section from the readme

[ci skip]