added filepath (default on) and last change time of file (default on)
added docs
changed both settings default to off
moved savetime after flags
allow showing the full path of the current file
Merge pull request from darokee.

darokee commit msg: added filepath (default off)
                    and last change time of file (default off)
Merge branch 'master' of git://github.com/chadburrus/vim-statline