Improve dropdown icons

assets/sass/_dropdown.sass

@@ -59,7 +59,16 @@ ul.dropdown-submenu-open
 
 td
   a.dropdown-menu
+    strong
+      color: color('primary')
+      i
+        color: color('primary')
     i
-      color: #dedede
-    &:hover i
-      color: color('primary')
+      color: color('lighter')
+    &:hover
+      strong
+        color: color('medium')
+        i
+          color: color('medium')
+      i
+        color: color('primary')

assets/sass/_task_board.sass

@@ -20,8 +20,6 @@ div
   a
     color: color('dark')
     text-decoration: none
-  .dropdown-menu
-    font-weight: bold
 
 .task-board-collapsed
   overflow: hidden

assets/sass/_task_listing.sass

@@ -1,14 +0,0 @@
-@import variables
-
-.task-table .dropdown-menu
-  color: color('dark')
-  text-decoration: none
-  font-weight: bold
-  &:focus, &:hover
-    text-decoration: underline
-
-td.task-table a
-  color: color('dark')
-  text-decoration: none
-  &:hover
-    text-decoration: underline

assets/sass/app.sass

@@ -41,7 +41,6 @@
 @import task_tags
 @import task_summary
 @import task_form
-@import task_listing
 @import comment
 @import subtasks
 @import task_links