Time series vis + volume time series vis [preview]

A preview of a time series visualizer coupled with the volume time series visualizer.

- The time series visualizer has been changed to display four quadrants. Three for navigation and a bigger one for selection and better visualization. All of them together take only half of the screen, vertically. The extra painting needed for the fourth quadrant does not slow the visualizer in a noticeable way. The selection on the last quadrant still need to be implemented and it is still undergoing some testing.
- On the second half we have two graphs: on the main/top graph we see all the selected time series, y-scaled on the max-min values displayed at the moment. Different colors are used for the lines, based on the ts average value with respect to global min-max and using the selected color coding. Other criteria could be used to color the lines. On the second part we can have a group of graphs, each showing the detail of every selected ts. The user will be able to manually sort the time series, or use some functions to do so.
The first part is one big svg element, while the second is composed of multiple svg blocks.

First block
![screenshot 37](https://cloud.githubusercontent.com/assets/923630/3715602/5f191e4e-15ed-11e4-82d7-361ce5672e45.png)
Since the first part could display too many lines to be comprehensible we use some transparency on all lines and only highlight one line at a time.

Sorting example:
![screenshot 38](https://cloud.githubusercontent.com/assets/923630/3715614/c04bbfc8-15ed-11e4-9413-de63c0a54560.png)
Manually sorting an element in an already sorted list of time series, just by clicking and dragging.