Fix setting of title in GraphView constructor

This was causing Eclipse to throw an error in the layout editor when no title was set.
realtime scrollToEnd does not clear labels width/height cache, so that
it is not flickering
Merge pull request #106 from mfgmfg/master

Fix setting of title in GraphView constructor
doc
Merge branch 'master' of github.com:jjoe64/GraphView
new version 3.1.1