Add flot

Including two plugins
Fix flot settings
Add histogram and range functions
Easier public function management and some fixes

Now the code to make a function public is right above that function
Fix quotes (" -> ')
Fix indent mistake
Add example data
Remove empty lines at end of csv
Add an empty flot style

Change/add some line breaks
Make dataset overview a table instead of list
Vectorize make_ext_timestamp
Add function to create a dataset table

This functions show that data in a dataset
You can limit the amount of rows shown
(to many rows can take very long to render/create)
Updated the demo

Add options to show a plot or data table
Add buttons to choose plot settings (not yet functioning)
Externalize stylesheets