add loading account info by default
remove exit button; adjust layout; fix full image problem; fork tk_controller
Merge branch 'v2.0' of https://github.com/Mozilla-TWQA/B2G-flash-tool into v2.0
Merge pull request #160 from altsai/v2.0

add loading account info by default
Merge branch 'v2.0' of https://github.com/Mozilla-TWQA/B2G-flash-tool into v2.0
ui-focus; ui-bind return key; adapt default user password
Merge branch 'v2.0' of https://github.com/zapion/B2G-flash-tool into v2.0
Merge pull request #161 from zapion/v2.0

r=me