hiding the minimize button for mobile/low resolution users - fixes issue #21

public/src/modules/composer.js

@@ -24,7 +24,7 @@ define(['taskbar'], function(taskbar) {
 													'</div>' +
 													'<div class="btn-group action-bar" style="float: right; margin-right: -12px">' +
 														'<button data-action="post" class="btn" tabIndex="3"><i class="icon-ok"></i> Submit</button>' +
-														'<button data-action="minimize" class="btn" tabIndex="4"><i class="icon-download-alt"></i> Minimize</button>' +
+														'<button data-action="minimize" class="btn hidden-phone" tabIndex="4"><i class="icon-download-alt"></i> Minimize</button>' +
 														'<button class="btn" data-action="discard" tabIndex="5"><i class="icon-remove"></i> Discard</button>' +
 													'</div>' +
 												'</div>' +