Fixes + improvements

Fixes:

• Fix bug in Instagram.js when no caption is available
• Add null to return type for getRecentMedia
• Use format instead of sprintf

Improvements:

• Add instruction to get access token when you are working locally
• Update InstagramFeed.html.twig

Bugfixes

Fixes:

• Fix datagrid. #14
• Add missing macro to Index.html.twig template. #13

Made for Fork CMS 5

3.0.0

Bump VERSION.md/README.md/CHANGELOG.md

Made for Fork CMS 4

Instagram module ready for Fork CMS v4

Release v1.0.1

Instagram Module for Fork CMS v3.7 to v3.9