I update design for poll in post stream
Fix tr 

The translation 'türk' is ethnicity / nationality. change to language, türkçe.
Merge pull request #4897 from hpetru/update-poll-view-in-stream

I update design for poll in post stream
Merge pull request #4898 from mehmetaergun/patch-1

Fix tr in locale settings
Merge branch 'develop' of github.com:diaspora/diaspora into develop
Add poll in post preview
Merge pull request #4899 from hpetru/poll-in-post-preview

Add poll in post preview
Home page, registration page and robots.txt personnalization
Add my aspects link in the header