added test_auto grunt task
changed openWidgetDialog => openWidgetSettings, updated API for providing custom widget settings options
implemented default onSettingsClose and onSettingsDismiss functions
updated default task to only run karma unit tests
updated dashboard-layouts to allow for custom widget settings
changed from options to settings, removed test for optionsTemplateUrl (no longer used)
fixed defaults issues, updated demo
added new name spec file for widgetSettingsCtrl
updated demo with navbar, descriptions
added btf-markdown to demo
moved widget-template.html -> widget-settings-template.html
updated README with info about custom widget settings
fixed headings in readme
Merge pull request #61 from DataTorrent/widgetSettings

Improved widget settings, and ability to provide custom widget settings