Added documentation to the help message, and added a 'diffpatch'
function of the main file with an old undo.
Fixed 'gg' command to match height of the new help messages.
Applied learno's gundo_disable patch -- https://bitbucket.org/sjl/gundo.vim/issue/33/let-g-gundo_disable-0-is-not-available
Added live reload of the undo buffer as you edit the file. Courtesy of
Patrick Oscity
(https://bitbucket.org/sjl/gundo.vim/issue/40/feature-request-live-reload).
Fix from issue 38: https://bitbucket.org/sjl/gundo.vim/issue/38/python-errors-nonetype-not-iterable-with
Looks like its possible to get a NoneType in a list?
Issue34 - The graph now shows marks nodes written to disk with a 'w'.
Updated vim docs.
Merge branch 'issue34' into mergedpatches
Merge branch 'issue38' into mergedpatches

Minor fix to get the merge working (indenting):

Conflicts:
	autoload/gundo.py
Merge branch 'live_updates' into mergedpatches
Merge branch 'master' into mergedpatches
Added 'verbose' option and defaulted to non-verbose for more compact
tree views.
Fixed initial cursor position for lines starting with a 'w'.
Merge remote-tracking branch 'dsummersl/master'

Conflicts:
	autoload/gundo.py
	autoload/gundo.vim
	doc/gundo.txt