Patch by Ultra47

The patch includes following things:
- better Graph.svg
- New: Uptime in Footer
- New: more Informationen in Sysinfo (cached Memory, processes, swap memory, free men inkl. buffered & cached)
- failban Patch => thx to hook
- pollindicatorfix => thx to hook
- fix for ECM History if polling disabled

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@10000 4b0bc96b-bc66-0410-9d44-ebda105a78c1