bug-fix: user upload avatar

pull request fixes

restyle ui

refactor _notification partial

uncommented close_date in mailer

text changed from dashboard to home page

Fix request new group button on homepage.

Add better error for development

Update newrelic gem.

update tooltip by ajax

change actor on added_to_group notification

feature allow group max_size editing

group max_size editing added to group in admin panel

migration to update max_size for recently  groups

remove group new route and spec

add extra check on model for populating max_size

schema no-change

Remove redundant cuc specs

Add validators on maxsize

Fix 'create a group link'

Populate expected size for group requests.

Show admin_email on GroupRequests index page.

Organise cuke features directory.

Update cucumber.yml

adjust styling