Allow dialog summary to wrap

Currently even if the summary is extremely long (i.e. select weekly and
check all the days of the week), it just keeps growing in width and it
expands the size of the dialog box as well. I limited the width of the
summary to the width of the dialog.
Merge pull request #4 from mhchen/dialog_style_changes

Allow dialog summary to wrap
1.0.2
adding a link to the demo app
Merge pull request #8 from pungoyal/master

added dummy app code path