The volcanic emission inventory was modified as follows:
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- Eruptions for 2008 and 2009 were added.

- OMI observations were used in a number of cases to estimate SO2 emissions.
  Examples: Kasatochi (2008), Nyamuragira (2006), Okmok (2008), 
  Redoubt (2009), Sarychev Peak (2009)

- The VSI/VEI based SO2 emissions for non-arc volcanoes were unrealistically 
  large in many cases. The distinction between arc and non-arc volcanoes for 
  the purpose of determinig emissions from the VEI was therefore abandoned 
  and the SO2 emission numbers for the arc volcanoes are (for now) used for all 
  volcanoes.

- The plume height for Pinatubo and El Chichon was changed to 25 km.

- Plume heights from BVGN reports were added for several eruptions.

- A bug in the code which generates the inventory was fixed (this affected 
  some plume heights).