add: html structure + basic css presentation
add: polish html/css + use js to hide description
add: filter by one tag
add: filter by tag1|tag2
add: filter by tag1&tag2|tag3
add: better selector for showDescription -> .parents()
change: slideshow display events for a range of time
fix: clean all events by originalStream, date no more important
Merge branch 'allEvents'
fix: add external dependencies in allEvents