D-Net

[Connect | Trunk]: Curators: hide affiliations column if they are not existed

[Trunk | Library]: (Changes needed for community background in connect portal)
1. directLinking.component.html & myClaims.component.ts & errorPage.component.ts: Move 'uk-margin-small-top' class inside id="tm-main".
2. linkingGeneric.component.html: Add class 'white-box-with-border uk-padding-small'....

[Trunk | Connect]:
1. community.component.html: Remove 'communityBackground' class | Use class 'generalSearchForm' instead of 'publicationsSearchForm'.
2. contentPage.component.ts & curators.component.html & nationalBulletinsPage.component.ts & organizationsPage.component.ts & projectsPage.component.ts & subjects.component.ts & invite.component.html: ...

[Library | Trunk]: Some minor css changes

[Connect | Trunk]: Change community title and some margins.

[Connect|Trunk]

App.component:

smoother load of customization
show subscribe when community is loaded
Footer: switch to dark background

[Library|Trunk]

Bottom menu:
for light background use the white flag
update connect eu text

[Library | Trunk]: Change border of curator-photo

[Connect | Trunk]: Fix padding bottom on curators and animation-fade

[Trunk | Connect]:
1. affiliations.component & curators.component: In affiliations website_url, call method 'StringUtils.urlPrefix()' (add "//" prefix, when url does not start with protocol (http, https, //)).
2. community.component.html: [Bug fix] Add checks (<div *ngIf="communityInfo && community" class="publicationsSearchForm ">).