Add basic print stylesheet

assets/css/print.min.css

@@ -0,0 +1 @@
+@page{orientation:landscape;-webkit-transform:rotate(-90deg);-moz-transform:rotate(-90deg);filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=3)}#board-container{overflow-x:initial !important}.board-task-list{min-height:0 !important}.task-board{page-break-inside:avoid}.menu-inline,.project-header,.page-header,.menus-container,.sidebar,.alert,.alert-info,.dropdown>ul{display:none}

assets/sass/_global_print.sass

@@ -0,0 +1,18 @@
+@import variables
+@import mixins 
+	
+@page
+  orientation: landscape
+  -webkit-transform: rotate(-90deg)
+  -moz-transform: rotate(-90deg)
+  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3)
+
+#board-container
+  overflow-x: initial !important
+.board-task-list
+  min-height: 0 !important
+.task-board
+  page-break-inside: avoid
+/*Hide menu*/
+.menu-inline, .project-header, .page-header, .menus-container, .sidebar, .alert, .alert-info, .dropdown > ul
+  display: none

assets/sass/app.sass

@@ -51,4 +51,4 @@
 @import panel
 @import activity_stream
 @import user_mentions
-@import image_slideshow
+@import image_slideshow

assets/sass/app_print.sass

@@ -0,0 +1 @@
+@import global_print