Add seconds as a new axis formatter

Added nanosecond y-scale formatting

fixes #226

Improvement to series toggling, CTRL+MouseClick on series name will now hide all others (Closes #350)

Change InfluxDB SQL generation template to wrap column names in quoutes

Since column names can contain dots or dashes, which will give syntax errors from InfluxDB API, unless wrapped in quoutes

Fixes to filters and the 'All' option. It now never uses '*' as value, but all options in a {node1, node2, node3} expression (Closes #228, Closes #359)

Fixed an exception when adding a graphite function.

The error was that funcDef is just a string parsed from an event
like onMouseDown or something like that. This event is turned
into a function instance, and the function instance has
expected parameters and so forth. However, the number of
parameters was actually checked on the funcDef.

New config setting for graphite datasource to control if json render request is POST or GET (Closes #345)

Closes #333, New version availability check will now checks http://grafanarel.s3.amazonaws.com/latest.json if there is a new version. And the link now points to http://grafana.org/download

Merge branch 'feature/influxdb-add-where-conditions' of github.com:mavimo/grafana into mavimo-feature/influxdb-add-where-conditions

Increased resolution for graphite datapoints (maxDataPoints), now equal to panel pixel width. (Closes #5)