Initial commit of gui-shiny
Normal message & install shiny when running PivotalR() only
Added pivotalr as the alias of PivotalR
Added library(shiny) to PivotalR()
Check installed.packages in onAttach
Finally made shiny work
Added table summary into GUI
Better handling of installing shiny
Better message when installing shiny
Added table observer
Update of table list works
Try conditionalPanel
Minor changes; conditionalPanel still does not work
Made conditionalPanel work
Enabled variable selection for models

* also multi-tab set for main panel
Better output; allow input formula directly