Improve performance

Remove some useless code, make app run a little faster, and add Mixin Network status

Display trading asset detail

Display Etherscan link and EOS contract link for trading asset.

Fix bug. Add one button to reload ocean target asset

Fix many bugs, remove exceptions

fix crash bug when no transaction record for new user

Also close file selection view after load wallet

refract transaction detail

v0.0.4

bump verison

first release

v0.0.1

Update README.md