simplify wording
Merge pull request #188 from ashh87/master

new keys are cross-certified
add https://github.com/rtyley/spongycastle-old to README
fix some small layout bugs, add barcode scanner lib as source lib, fix qr code scanning issues
Merge branch 'master' of github.com:dschuermann/openpgp-keychain
prettify import
toast on copy to clipboard
fix exporting to file, close #195
Merge pull request #196 from ashh87/master

cross-cert changes