Added "app_reset" hook.
Added "app_reset" hook.

Plugins can listen to "app_reset" to detect changes in app.plugins.
It is now also possible to add and trigger custom hooks. See
Bottle.hooks and HooksPlugin for the API.

khirayama/bottle,samstav/bottle,ericfrederich/bottle,bottlepy/bottle,kevintaw/bottle,AWFU/bottle,SamuelMarks/bottle,gaotongfei/bottle,wangjun/bottle,fkazimierczak/bottle,mrdon/bottle,prologic/bottle,Kjuly/bottle,wangjun/bottle,myzhan/bottle,adampresley/bottle,AWFU/bottle,adampresley/bottle,myzhan/bottle,enzzc/bottle,CentricWebEstate/bottle,mefyl/bottle,ListFranz/bottle,kevinmel2000/bottle,khirayama/bottle,hayate/bottle,Kjuly/bottle,SmithSamuelM/bottle,oz123/bottle,ifduyue/bottle,taisa007/bottle-ja,SmithSamuelM/bottle,gaotongfei/bottle,xsank/bottle,oz123/bottle,ListFranz/bottle,kevintaw/bottle,enzzc/bottle,StdioA/bottle,defnull/bottle,prologic/bottle,hkmshb/bottle,ifduyue/bottle,hkmshb/bottle,ericfrederich/bottle,bottlepy/bottle,mefyl/bottle,samstav/bottle,defnull/bottle,catroot/bottle,catroot/bottle,hayate/bottle,Inndy/bottle,mrdon/bottle,Inndy/bottle,SamuelMarks/bottle,taisa007/bottle-ja,kevinmel2000/bottle,StdioA/bottle,fkazimierczak/bottle,CentricWebEstate/bottle