Update src/js/Rickshaw.Graph.HoverDetail.js
Update src/js/Rickshaw.Graph.HoverDetail.js

Fixing possible infinite loop when trying to find the appropriate index for a HoverDetail.
yaronn/rickshaw,shutterstock/rickshaw,openhose/rickshaw,adeelshahid/rickshaw,adeelshahid/rickshaw,VividCortex/rickshaw,pombredanne/rickshaw,butterflyhug/rickshaw,butterflyhug/rickshaw,boomtrain/rickshaw,zhangweiabc/rickshaw,dwt/rickshaw,mcanthony/rickshaw,toniher/rickshaw,IoTboy/rickshaw,RobertoMalatesta/rickshaw,dpobel/rickshaw,dpobel/rickshaw,npmcomponent/cristiandouce-rickshaw,openhose/rickshaw,JaySunSyn/rickshaw,IoTboy/rickshaw,egorovpavel/rickshaw,xebitstudios/rickshaw,boomtrain/rickshaw,mcanthony/rickshaw,dpobel/rickshaw,zhangweiabc/rickshaw,zhangweiabc/rickshaw,toniher/rickshaw,egorovpavel/rickshaw,IoTboy/rickshaw,npmcomponent/cristiandouce-rickshaw,dwt/rickshaw,boomtrain/rickshaw,openhose/rickshaw,RobertoMalatesta/rickshaw,pombredanne/rickshaw,shutterstock/rickshaw,adeelshahid/rickshaw,mcanthony/rickshaw,xebitstudios/rickshaw,JaySunSyn/rickshaw,shutterstock/rickshaw,egorovpavel/rickshaw,yaronn/rickshaw,dwt/rickshaw,xebitstudios/rickshaw,butterflyhug/rickshaw,pombredanne/rickshaw,JaySunSyn/rickshaw,toniher/rickshaw,RobertoMalatesta/rickshaw,VividCortex/rickshaw