--
* src/Connection.js, src/Helpers.js: performance of decoding incoming
base64 data was improved to about 4 times the speed by introducing
two more efficient functions (thanks to rrenkert@intevation.de for
finding and testing them)
* src/gpgmejs.js: Decrypted data will now return as Uint8Array, if the
caller does not wish for a decoding. Decoding binary data will return
invalid data, and a Uint8Array may be desired. This can be indicated
by using the (new) 'binary' option in decrypt.
* src/Errors.js A new error in case this decoding fails
* src/Message.js, src/Connection.js: expected is change from base64
to binary, to avoid confusion later on.
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