#22 Making sure project pages can be displayed also if there is no release or "Getting started" URL
#22 Showing link to announcement post only if URL is provided
#24 Making use of standard layout for HV download page
#24 Adding HV FAQ page
#24 Adding HV contribution page
#24 Updating information in HV contribution guide, formatting
#24 Fixing typo
#24 Using standard layout for HV documentation page