windows
- options actually work with model, and expressions now
window and windows
- checks to make sure double position sets do not occur
- the close button and pin issues with chrom appear to happen less,
  however there is deff a problem with webkit in general as firefox does
not have the close button and invisible pin issues
Examples
- plus 1 fixed
- windows re-render shows that the marker options persists across model
  changes
Merge pull request #936 from nmccready/window_windows_fixes_help_rendering

window and windows fixes