stop autoscrolling on scroll up event, idea by courtesy of @rkh

assets/javascripts/app/tailing.coffee

@@ -1,5 +1,6 @@
 @Travis.Tailing = ->
-  $(window).scroll(@positionButton.bind(this))
+  @position = $(window).scrollTop()
+  $(window).scroll(@onScroll.bind(this))
   this
 
 $.extend Travis.Tailing.prototype,
@@ -8,6 +9,7 @@ $.extend Travis.Tailing.prototype,
 
   run: ->
     @autoScroll()
+    @positionButton()
     Ember.run.later(@run.bind(this), @options.timeout) if @active()
 
   toggle: (event) ->
@@ -31,6 +33,12 @@ $.extend Travis.Tailing.prototype,
     winBottom = win.scrollTop() + win.height()
     win.scrollTop(logBottom - win.height()) if logBottom - winBottom > 0
 
+  onScroll: ->
+    @positionButton()
+    position = $(window).scrollTop()
+    @stop() if position < @position
+    @position = position
+
   positionButton: ->
     tail = $('#tail')
     return if tail.length is 0

assets/stylesheets/layout.sass

@@ -40,7 +40,7 @@ body > div
   // @include transition(width .1s ease-out)
 
 $step: 12px
-@for $i from 1 through 10
+@for $i from 1 through 11
   @media screen and (min-width: (1180px + $i * $step * 2))
     body
       background-position-x: ($left-width + $i * $step - 790px)

public/stylesheets/application.css

@@ -1983,6 +1983,22 @@ body > div {
     margin-left: 410px;
   }
 }
+@media screen and (min-width: 1444px) {
+  /* line 45, /Users/sven/Development/projects/travis/travis-ember/assets/stylesheets/layout.sass */
+  body {
+    background-position-x: -408px;
+  }
+
+  /* line 47, /Users/sven/Development/projects/travis/travis-ember/assets/stylesheets/layout.sass */
+  #left {
+    width: 382px;
+  }
+
+  /* line 49, /Users/sven/Development/projects/travis/travis-ember/assets/stylesheets/layout.sass */
+  #main {
+    margin-left: 422px;
+  }
+}
 @media screen and (max-width: 1400px) {
   /* line 53, /Users/sven/Development/projects/travis/travis-ember/assets/stylesheets/layout.sass */
   #left .duration_label {