Implements #5, update time slider domain

Still needs some input checking and there is code duplication with the redraw() function

Signed-off-by: Marko Locher <marko@locher.at>
Move method near to the select method

Signed-off-by: Marko Locher <marko@locher.at>
Make the redraw method global and remove the duplicated code from the domain method

Signed-off-by: Marko Locher <marko@locher.at>
Update the Readme.md with the new domain() function

Signed-off-by: Marko Locher <marko@locher.at>
Forgot a semicolon at the end of the js in Readme.md

Signed-off-by: Marko Locher <marko@locher.at>
Merge pull request #7 from EOX-A/locherm_allow_update_domain

Fixe #5, implement updating the time slider domain