Preventing reply author name to leave its box

Currently in view thread page if reply author box name is long it override
on reply content rather breaking into a new line
Using core comment-grey-bubble class to show reply count icon
Reduce subject box extra height

Earlier it had extra height and was looking ugly
Prevent thread reply content from leaving outside of div
E-Mail accounts were not shown in filter menu in all threads page

This bug was caused by accidental removal of a line most probably in
refactor branch
Merge pull request #133 from VarunAgw/ui

Tighten up UI elements and use Core's comment-grey-bubble class.