remove 1024-bit keys as an option to create, they are deprecated

http://csrc.nist.gov/publications/nistpubs/800-131A/sp800-131A.pdf
http://www.cyberspaced.info/2012/08/nist-cryptographic-strength-requirements.html
update transifex config to point to new name: "gpg" rather than "gpgcli"

In an effort to simplify all the names that are used for this app, I've
been standardizing on GPG and GnuPrivacyGuard for now.
update Spanish translation after 100% verification status
add German translation (thanks Chartman123!)
added Czech translation (thanks fuzzycz!)