* Shepherds in Jordan Valley focus of demolition efforts
* Strategic area key issue in peace talks
* Rights groups slam Israel, which says dwellings illegal
By Allyn Fisher-Ilan
EIN EL HILWE, West Bank, March 12 (Reuters) - Palestinian shepherd Mahmoud Ka'abneh has squeezed his family of 12 into a neighbour's hut on a hilly desert oasis since an Israeli bulldozer turned his own flimsy ...