Added the 'stacked' and 'lowestCurrent' functions

added exclude function

added movingAverage function

A lot more work on annotations (#44, #8). Graphite events is working, editing, icon size, color and vertical line toggle/options working. To sleepy now...

major improvement to how modals are loaded, much more reuse in html dom elements, hopefully solves #109.

Fixes #110, css fix for fullscreen and edit mode, when fullscreen and edit panel overflows the fullscreen height the panel is now scrollable. Also css fix for segment dropdowns for a graph with many many target rows.

More work on annotations (#44,  #8) It is working for annotations from graphite metrics, basic annotation editor and everything is working. Needs some final touches and support for more datasources

fixed unclosed selected html tag (caused issue with optimized build version so no options where shown in graph edit tabs)

Fixes #104, improvements to graphite target editor and use of wildcard, the "select metric" should now behave/appear correctly

Closes #35, grafana now supports multiple graphite backends. Check config.sample for how to setup. In the general tab of the graphite panel you can change datasource

Conflicts:
	src/css/bootstrap.dark.min.css
	src/css/bootstrap.light.min.css
	src/css/less/grafana.less
	src/css/less/variables.dark.less
	src/css/less/variables.light.less