Merge pull request #6 from nmushegian/nikolai

GUI updates 0.4.13
Merge pull request #7 from nmushegian/nikolai

0.4.13 gui update
fix typo error
estimated_yield
Merge pull request #8 from nmushegian/nikolai

cancel order fix
Merge pull request #323 from AlexChien/chinese

Chinese Translation Update
Merge branch 'develop' of https://github.com/BitShares/web_wallet into develop
lock out user if client is too old, update translation
Merge branch 'develop' of https://github.com/BitShares/web_wallet into HEAD
try to fix cover orders