report: Use async.parallel()

Simplifies

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
history: Use async to simplify

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
routes: Add `r:` as debug prefix

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
COsmetics: put '  , ' on the second line in variable declarations

Signed-off-by: Timothy Gu <timothygu99@gmail.com>