delete empty bookmarked lines
fixed 0 regions error in marking
fixed ping ponging correctly
removed restoreBookmark
moved view-group relationship code to new fn
workaround for group handling bug
finally got multiple groups work bug-free
added new mode: shows bookmarks in current file only
fixed a few bugs with the new mode
fixed bookmarks in current file logic
fixed index bug and added a save on moving bookmarks around
updated readme and messages
reset region tag to old value