MIE-1536 - Custom template.

#### Changelog:
Only mobile (phone form factor). The badge's picture and its description are shown inline  at Followers and Following containers.

#### New:
     You can pass an optional parameter streamOptions on activity stream config so that these parameters can be restored from its handlebars model.


@lsvx perhaps streamType is not abstract word. I wanted to serve a way to stablish a connection between MC and the Activity handlebars. The main problem here is that we have the public repo as middleware (the activity). So adding optional parameters to the activities becomes more dynamic. In example  "streamType" object is configured in MC
https://github.com/natgeo/member_center/pull/398/files#diff-e321b2c59e8351c8f0d16789cdf0b9e0R73

So i have a conection between MC and the activity handlebars which currently is private which make sense why you didn't see where i made use of ifConatins helper.
https://github.com/natgeo/ngs-modules-activitystream/pull/13/files#diff-e85924330fca18305ee80f9405612effR11

What i could do is moving forward this logic from renderParse to the private handlebars. So we are manipulating NG stuff isolated from public repo.

PD: This PR requires of approval the others 2 PR what are linked as related on PR description.