Update website PO files.

wiki/src/doc/about/features.de.po

wiki/src/doc/about/features.fr.po

wiki/src/doc/about/features.pt.po

wiki/src/doc/encryption_and_privacy.index.de.po

wiki/src/doc/encryption_and_privacy.index.fr.po

wiki/src/doc/encryption_and_privacy.index.pt.po

wiki/src/doc/encryption_and_privacy/checksums.de.po

wiki/src/doc/encryption_and_privacy/checksums.fr.po

wiki/src/doc/encryption_and_privacy/checksums.pt.po

wiki/src/news/test_1.1-rc1.de.po

wiki/src/news/test_1.1-rc1.fr.po

wiki/src/news/test_1.1-rc1.pt.po

wiki/src/support.de.po

wiki/src/support/known_issues.de.po

wiki/src/support/known_issues.fr.po

wiki/src/support/known_issues.pt.po