Merge branch 'edit-mobile' into 'master'

Shows the edit comment button on mobile

## What does this MR do?

Shows the edit comment button on mobile.

## What are the relevant issue numbers?

Closes #17214 

## Screenshots (if relevant)

![Screen_Shot_2016-06-01_at_12.33.13](/uploads/d46b800c175a53821ea8e8af49c07641/Screen_Shot_2016-06-01_at_12.33.13.png)

See merge request !4402
26 jobs for master in 780 minutes and 50 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Test
passed #1652922
brakeman

00:04:43

passed #1652925
bundler:audit

00:02:50

passed #1652926
db-migrate-reset

00:04:46

passed #1652924
flay

00:02:46

passed #1652923
flog

00:02:46

passed #1652920
rubocop

00:06:00

passed #1652921
scss-lint

00:03:04

passed #1652911
spec:api

00:25:18

passed #1652928
spec:api:ruby22

00:30:53

passed #1652910
spec:feature

01:10:14

passed #1652927
spec:feature:ruby22

01:15:15

passed #1652913
spec:lib

00:37:42

passed #1652930
spec:lib:ruby22

00:35:38

passed #1652912
spec:models

00:42:13

passed #1652929
spec:models:ruby22

00:48:32

passed #1652915
spec:other

00:38:56

passed #1652932
spec:other:ruby22

00:50:34

passed #1652914
spec:services

00:49:01

passed #1652931
spec:services:ruby22

00:56:34

passed #1652918
spinach:other

00:25:32

passed #1652935
spinach:other:ruby22

00:26:49

passed #1652916
spinach:project:half

00:37:25

passed #1652933
spinach:project:half:ruby22

00:32:17

passed #1652917
spinach:project:rest

00:33:08

passed #1652934
spinach:project:rest:ruby22

00:32:48

passed #1652919
teaspoon

00:04:50