allow walking nodes in reverse
allow walking nodes in reverse

Signed-off-by: Lakshmi Vyas <55c7f31ee112f1552c5c4836a901c2e5c25e8d64@gmail.com>
hyde/hyde-old,pib/hyde-old,joshbohde/hyde,sharms/hyde,lakshmivyas/hyde,jairtrejo/hyde,sirex/hyde,pascalw/hyde,hyde/hyde-old,andrulik/hyde,m-thielen/hyde,timfreund/hyde,Psycojoker/hyde,op/hyde,tvon/hyde,joshbohde/hyde,holmboe/hyde,kailoa/hyde,tow/hyde,sjl/hyde,m-thielen/hyde,Psycojoker/hyde,chetan51/hyde,Psycojoker/hyde,pascalw/hyde,m-thielen/hyde,kerryck/hyde,JoshRosen/hyde,sirex/hyde,russellhaering/hyde,kerryck/hyde,sjl/hyde,lachenmayer/hyde,pib/hyde-old,holmboe/hyde,lakshmivyas/hyde,JoshRosen/hyde,borismus/hyde,chetan51/hyde,sharms/hyde,snorp/hyde,borismus/hyde,snorp/hyde,nmandery/hyde,Psycojoker/hyde,jairtrejo/hyde,nmandery/hyde,op/hyde,andrulik/hyde