create auto backup for bookmarks.
move getFileBackup method.
Show last backup date in bookmark activity.
Add dialog to allow user to choose backup file.
Do not show dialog if no files found.
Fix regex for autobackup files.
sort files by name.
Bookmark activity: last backup shown below all bookmarks.
limit autobackup up to 10 files only.
manual backup file is listed on top.
Fix date displayed. Consistent with bookmark activity.
replace string with string resource.
Reverse file ordering.
Add title and add margins.
initial commit. make reminder setting.
Display current alarm time.
Display available ringtones.
Merge branch 'release/3.2.0' into develop
Translate more code and comments to english
Notification with vibration.