Added som color to wellbackground, changed menutextcolor, list-group colors and well-bg color

Changed variables:
$navbar-inverse-color -> $black
$navbar-inverse-bg -> $93d8dd
$well-bg -> #e0dddc
$list-group-bg -> #d1edec
$list-group-border -> #4f666a

Also added a custom class to bootswatch.less "top-buffer"