use an input queue in synchronizer, so that new addresses can be created from other threads
allow address creation beyond gap limit in GUI. fixes #512
Merge branch 'master' of github.com:spesmilo/electrum into clean
catch zbar.UnsupportedError
use the ca list that ships with requests. update test.
don't show qrcode button in payto if it is a payment request
use x509 to check if server certificate has expired
optional parameters for create_new_address
update comment on x509 class
fix missing import. fixes #738
Made all bip32 primitives testnet compatible.
Made use of fewer constants
Merge pull request #741 from chrisglass/clean-support-testnet

Made all bip32 primitives testnet compatible.
Merge branch 'master' of github.com:spesmilo/electrum into clean
support for OP_RETURN
Merge branch 'master' of github.com:spesmilo/electrum into clean