[REF] work in progress. reset graph view to minimal state in addon web_graph
[ADD] add nvd3 library to graph view (addon web_graph)
[ADD] add (custom version of) bootstrap  library to graph view (addon web_graph)
[IMP] add widgets (chart view and pivot view) in addon web_graph
[IMP] add pie, line and bar chart to the chartview widget (addon web_graph)
[IMP] small cleanups to chartview widget (addon web_graph)
[FIX] fix a bug preventing hide and show method of chartview widget to function properly (addon web_graph)
[IMP] add access to model fields description in addon web_graph
[FIX] fix pivottable and chartview widget to use their template instead of hardcoded divs (addon web_graph)
[REF] large refactoring of addon web_graph (mainly add widget BasicDataView and many cleanups)
[IMP] add rendering of basic table in pivottable widget (addon web_graph)
[REF] refactoring of addon web_graph.  goal is to handle properly the switch of chart view to table view
[REF] move the method displaydata to a better place in addon web_graph
[IMP] add redraw flag to basicview widget in addon web_graph
[FIX] fixes a problem in pyeval catching all exceptions silently
[IMP] add functionality to basicview widget and rearrange code in addon web_graph
[IMP] improve the rendering of the table in pivottable widget (addon web_graph)
[IMP] work in progress. goal is to allow expansion of rows/cols in pivottable (addon web_graph)
[IMP] work in progress. goal is to allow expansion of rows/cols in pivottable (addon web_graph)
[IMP] work in progress. goal is to allow expansion of rows/cols in pivottable (addon web_graph)