0.7.6
-Lightning Bolt mana cost changed to 10%.
0.7.5
-Fixed Elemental Precision to add 1/2/3% hit.
-EnhSim now simulates also the MPS or mana usage. base_mana added to config.
-You can see (procs/uses) per minute in the statistics.
-Flametongue stats are now also properly recorded.
-Added Call of Thunder talent.
-Added Shamanistic Focus talent.
-Added Convection talent.
-Added Elemental Focus talent.
-Changed Mental Quickness talent to affect mana usage.
-Config file is closed as soons as it is read, instead of closing it at the end of application. This allows to run multiple simulations simultaneously from the GUI.
-Fixed Lightning Bolt base damage to 603.
-Added Skullfish Soup.
-Fixed Elixir of the Mongoose and Elixir of Major Agility also affect spell crit.
-Fixed Static Shock to not proc on Windfury.
-BestDpsBuild.txt added to package. This is supposed to be the best dps spec with baseline gear(sunwell). I'll update this as theorycrafters do their job

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enhsim - Google Code
These are the mana costs I use, please check are they right:
Stormstrike 8%
Earth Shock 23%
Flame Shock 17%
Frost Shock 18%
Lava Burst 22%
Lightning Bolt 10%
One more thing. I don't model the durations of Shamanistic Focus and Elemental Focus, because it is virtually impossible with any sane rotation for them to fade.