[fixes#70695558]remove filter style from navbar header background css - IE9 navbar header now has a plain color bg without gradient; change Welcome-User dropdown item text color so it stands out in all screen size modes
[#69700336] vertically center align help icon
[fixes#71854718]create a lable-less select simple_form wrapper for depart/arrive select field in plan_a_trip page; add a style to enforce zero margin-left and margin-right for this field
db:migrate had not been run on oneclick-arc-int in a long time.
I ran it, and also added a step in travis deploy to run migrations
every time.

[Fixes #72094250]
Provide backend API for asynchronous review page [#71587338]