fix(integration-test): remove testapp afterwards so it is not stored in travis cache

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chore(release): v0.2.1
chore(package): use latest release process

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test(account): change username / password, reauthenticate
test(api): hoodie.id() tests
test(api): hoodie.request() tests
test(api): hoodie.checkConnection() / isConnected()
test(api): hoodie.open()
test(api): hoodie.account tests
test(api): hoodie.store
test(api): hoodie.remote
test(api): hoodie.task
test(admin dashboard): basic walktrough
test: cleaning up after every suite to prevent session conflicts
test(walktrough): prevent timeouts when waiting for unauthenticated state
fix(api): task tests
fix: run both www & admin tests
chore: added comment about failing attempt to refactor www/walktrough.js