KHARTOUM - Sudan's President Omar Hassan al-Bashir on Monday ordered the release of all political prisoners, a move cautiously welcomed by the opposition in the tightly-controlled African country.The announcement comes after Sudan and South Sudan agreed in March to end hostilities and resume cross-border oil flows after coming close to war a year ago. Khartoum had accused its southern neighbor of supporting rebels trying to topple Bashir."I announce today my decision to release all political prisoners," Bashir told parliament. "I also renew a commitment to create a climate to hold a national dialogue with the other political forces."Bashir, in power since 1989, did not say when and how many prisoners would be released.