Abbas thanks Putin for Russia's support for Palestinian people / Russia making efforts to overcome division among Palestinian factions -- adviser to Abbas / Palestinian officials create vice president position under leader Mahmoud Abbas / Palestinians create vice president role, eyeing successor to Abbas / Businesses across country remain closed in solidarity with Palestinians / Why the Palestinian Authority's Abbas is under pressure to pick a successor / Palestinian officials vote to create a vice presidency under Mahmoud Abbas / Palestinians create role for a vice president and possible successor to aging leader Abbas / Palestinian officials vote to create a vice presidency under aging leader Abbas / Erdogan urges Palestinian unity in calls with Abbas, Al Thani