Move Rssi updater code to its own class
AnalysisFragment: only read raw data if not known
Commit original version of GraphView
Replace GraphView ctor

* Replace the original constructor with
    an inflation-compatible one
* Add fluid setters to retain ability to set data
Rearrange and reformat some code
Make GraphView borders 25px wide
Realphabetize strings.xml
Rename @id/chart to @id/gv_chart
Allow no labels in the GraphView
Beat AnalysisFragment further into shape
Set GraphView label text size to 30px
Add functional programming support (:
Turn GraphView.{BAR, LINE} into constants
Make AnalysisFragment rootLayout a TableLayout