Notes: 2016/07/06: Improvement of getting URL process. Enabled hide status bar icon feature. Change design. Bug fix. 2015/12/18: Improvement of getting thumbnail process. 2015/11/12: Improvement of "Go Parent Folder" button. Support Android default shortcut function. Fixed some of bugs. 2015/07/15: Wrote text in command buttons. Wrote summary in some setting items. Implemented importing feature in introduction dialog.