Lightning Reflexes: Bonus starts out at +1 and increases by one at every number divisible by five to a maximum of +5. So at level 5 it will increase to +2 and at level 10 it will increase to +3.
Great Fortitude: See Lightning Reflexes
Iron Will: See Lightning Reflexes
Dodge: See Lightning Reflexes
Toughness: Has been replaced by Improved Toughness in all instances(including monsters such as zombies).
Still Spell: Still Spell and Silent Spell have been merged into a single feat called Stealthy Spell(As well as their sudden versions). They still operate independently with regards to meta magic spells.
Silent Spell: See Still Spell
Point Blank Shot: The +1 bonus increases by 1 for every 10 feet closer you are to the target . So the bonus is +2 from 20 feet to 25 feet and +3 from 5 feet to 15 feet, the bonus disappears when the target is adjacent(on a grid the feet listed is the number of squares between you and the target).