* Move Billing/Bandwidth Graphs to common format, extract data generation to central function
* Add API functions to access billing graphs and graph data
* Scrutinizer fixes
* Fix transfer graphs with from/to
* Scrutinizer Fix
* Fix docs, transfer page and missing from API param
* Document and fix reducefactor, Add Graph Stats to Graph Data
* Standardise times in graphdata
* Fixed renamed function for History GraphData