Altered ldt_annotate serializer to allow for serializing id for editing annotation + Added Markers widget that allows to make and edit 0 duration annotations.
/*
* Polemic Widget CSS
*/
.Ldt-Polemic {
border-style: solid none; border-color: #cccccc; border-width: 1px;
}
.Ldt-Polemic-Position {
background: #fc00ff;
position: absolute;
top: 0;
left: 0;
margin-left: -1px;
width: 2px;
height: 100%;
}
.Ldt-Polemic-TweetDiv {
position: absolute;
}