- separate zh_hant to zh_hant_tw, zh_hant_hk and zh_hant_sg
- add new locales `zh-hant-sg`, `zh-hant-hk`, `zh-hant-tw`
- fix zh_hant and zh_hans typo and layout
- update `bots/browse/translations.js` `bots/console/translations.js`
`bots/mailman/translations.js` `bots/transactor/translations.js`
* fix#1888 ether amount not updated in /send suggestion if it was initially undefined
* dummy change to trigger jenkins rebuild
* another dummy commit to trigger jenkins build
* Fix#1886
Completly rework the way how async handlers work
Delay further processing of message till async handler returns result
* Fix indent
* Fix#1903
* Implement possibility for async command handlers
Command handler can now return results asynchronously,
and those results as saved and persisted, indexed by
command message-id.
* Address feedback raised in PR comments
* Different handler codes + simplified error message