Default talent and glyph setup for level 90:
http://wod.wowhead.com/talent#pxDT|f0Gabq
Default talent and glyph setup for level 100:
http://wod.wowhead.com/talent#pxdT1|f0Gabq
Some interchangeable glyphs: Circle of healing can be replaced with more utility glyphs if you are doing 5-mans or can't handle the additional mana cost (irrelevant at 90 since mana is a non-issue) such as guardian spirit one or restored faith one which transforms your life grip into an intervene.
Prayer of Mending can be swapped for binding heal, especially useful at 5-mans with serenity since you can refresh 3 renews with 1 cast for a relatively low mana cost.
Prayer of Mending glyph is especially powerful when you get access to words of mending at level 100 because PoM is now uncapped and you can have more than 1 out at the same time and all of them benefit from this glyph. PoMs from multiple priests now stack so no more overwriting each other's PoM nonsense that exists on live.
Renew glyph is basically mandatory because stronger ticks are more beneficial than 1 extra tick and a few less powerful ticks. In most cases the very last tick of your renew will likely overheal, unless the fight is super gimmick like malkorok where this doesn't happen ever.