Semantic UI update to 2.1.8 (#211)

* Update to Semantic UI 2.1.6

Basically I tried to rebuild the old layout as closely as possible.
It is a bit more mobile friendly but still misses Semantic UIs collapsable menu:
  https://github.com/Semantic-Org/Semantic-UI/issues/157

+ ditch old tablesorter for recommended one
+ use em instead of percentage for status labels in macros

Overview:

+ sort overview by report date per default
+ slightly different colors

Facts:

+ template based approach to even out the columns in facts view
+ don't show empty containers
+ needed an additional variable in context

* get rid of unnecessary semantic src files

* more cleanup

* clean jquery-tablesort directory as well

* drop unused theme files

* remove symlinks in static/{js,css}

* semantic_update

+ bump to semantic 2.1.8
+ minor adjustments
  - default-sort class in tables
  - table type in inventory
  - fixed and wrapped table for reports

* updated screenshots

puppetboard/static/coffeescript/lists.coffee

@@ -5,9 +5,13 @@ $("input.filter-list").on "keyup", (e) ->
   rex = new RegExp($(this).val(), "i")
 
   $(".searchable li").hide()
+  $(".searchable li").parent().parent().hide()
   $(".searchable li").filter( ->
     rex.test $(this).text()
   ).show()
+  $(".searchable li").filter( ->
+    rex.test $(this).text()
+  ).parent().parent().show()
 
   if e.keyCode is 27
     $(e.currentTarget).val ""