fix group by params update

Conflicts:
	fnordmetric-webui/fnordmetric-webui-layout.js
	fnordmetric-webui/fnordmetric-webui-util.js
small util function fixes
reuse functions

Conflicts:
	fnordmetric-webui/fnordmetric-webui-util.js
remove prints
auto refresh metric preview
turn autorefresh off when time is selected
enable editor & resultpane resizing
Merge branch 'resizer_ttp' of github.com:lauraschlimmer/fnordmetric