added fix start date
minified version of sticky list headers
removing opacity if exists
day sticky list header
Squashed 'src/libs/sticky-list-headers/' changes from b323b7b..c584191

c584191 minified
a39acb3 removing opacity if exists

git-subtree-dir: src/libs/sticky-list-headers
git-subtree-split: c5841910dee192ac455b7f6d1495a5f578d75a9d
Merge commit 'd3a0d8bcfc9f050c4bda5ca2b71283e7afe2e5a5'
minified sticky-list-headers