sample dashboard extension added
onHead, onTail event added to logdb service. added TableView directive.
sample apps added & sample app import code added.
app directory path changed
unnecessaries removed.
each extension code are wrapped in code block. helper functions added to serviceExtension.
missing file added
temporarily hide adding widget extension markup
fixed a bug about negative offset at onTail event
validateWidgetContext function and test added
asset must have own validator
widget context validator test case modified
added WidgetService
app type extension supports
jquery & jquery ui updated
getScripts added to serviceExtension, and applied.
hide tooltip element by default
extracted sortColumns fn
added AppRegistry and AppProvider to support thirdparty apps
onHead be executed at first onStatusChange response