Update video on front page.
#97: Contact Us.
#57: What Is IBLI page.
Merge pull request #104 from Gizra/92

#92: Replace video in Homepage.
#66: Mailchimp.
#109: Social links in footer.
Change titles in IBLI On The Ground.
#108: Publications page.
Merge pull request #128 from Gizra/113

#113: Change titles in IBLI On The Ground.
#110: Events tab in Homepage.
Merge branch 'master' of github.com:Gizra/IBLI
Fix footer titles.
#98: Contact us Email address.
Merge branch 'master' into 117.