delete Wallet WIP
implements delete wallet, in backuptab
fix tests
fix conflics
remove .only
Merge pull request #685 from matiu/feature/deleteWallet

Feature/delete wallet
remove console.log from test

...cluttering the console.log output looks bad and can be avoided using methods
like this.
Merge pull request #701 from ryanxcharles/bug/remove-console-log-from-tests

remove console.log from test
fix karma tests
Merge pull request #707 from maraoz/fix/karma-tests

fix karma tests
make mocha browser tests all run with no console errors

...except Wallet and WalletFactory.
initial work replacing symmetric shared secret with ECIES
add tests for changes to private key
add tests for WebRTC and fix some mocha browser test problems

from now on you need to run "grunt shell --target=dev" to build the test
version of copay which you can run the mocha browser tests on, which includes
packages like sinon and soop.
make WebRTC tests work
remove unused "copay" dependency
add some basic tests for WebRTC
another test for WebRTC
fix Wallet tests

...by removing references to now-nonexistent netKey
got WalletFactory tests to work

...by removing the reference to netKey