BI module implementation, well, just a Dashboard

BI stands for business intelligence ;)
New router controller model and view for BI module
Architecture: viewer (tt+jQuery+Google Charts) <--- controller <---> module
KPIs are configured on module (.pm)
jQuery updated, #TODO: this breaks calendar
jQuery.min now, is a symbolic link to actual jQuery library
sql-ledger.css updated, changes should be replicated en some other css or create dashboard.css
Dependencies: Template >= 2.24