[1.5] How to clear voting proxy?

[abitmore]

Describe the bug
There was a "clear proxy" button in order versions e.g. 2.0.160420. But now we only have 2 buttons: "save" and "reset". It seems the "proxy" text box doesn't accept empty name. Clicking "reset" doesn't clear it as well.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://wallet.bitshares.org/#/account/chainsquad/voting
2. Click on the drop-down box with no label
3. input something, select an account name
4. Click reset
5. Click on the drop-down box
6. input nothing
7. click the white lock icon (or anywhere outside the box)

Expected behavior

• Able to clear proxy.
• The drop-down box should have a label.

Screenshots

Desktop (please complete the following information):

• OS: Win7
• Browser: Chrome
• Version: latest

[startailcoon]

Idd, we are missing a 'clear vote' button.

[startailcoon]

This issue requires some tinkering with Typeahead and handling empty values or resets. I've been unable to find a good way to handle this.

[wmbutler]

I'm not convinced we need a typeahead for the proxy input field. Maybe we can keep this easy by eliminating the typeahead. what if we:

• remove the lock
• replace the lock with a "Clear Proxy" button
• When proxy is set, make input field locked / disabled with Clear Proxy button displayed

[startailcoon]

I can take this and change it to a non-typeahead style so we can handle empty inputs.