Update arpwatch features with multiple interface support and a bug fix. 

**Bug fix allows arpwatch to start again without email option check**


Updated arpwatch to handle multiple interfaces
One report per interface
Multiple child report tabs in report tab
Fix mail quotations location so it doesn't break without email turned on
Updated arpwatch.xml versions
Capitalized Services title name
 
Updated package xmls

Updated package xmls with new vnstat2 version after confirmed package changes are good and 1 bug fix was implemented for vnstat php frontend. Signal to users that they can upgrade