1.2.0 All tools working

[semagnum]

• live update for all tools (#47): lamps, sky texture, and meshes update as you paint and erase
  • Note: the mesh and tube light materials don't update in the drag modes. May be internal to Blender, will open issue for it
• keyboard shortcuts while using tools, allowing parameters to be adjusted live. Includes drag adjust modes for offset, size and power
• Tool shelf now has some exposed properties (#46), including but not limited to lamp type for Light Paint and occlusion settings for Sun and Sky Paint) since Blender tools don't remember last used settings
• Sky Paint now has split into two tools: Sky Paint and Sun Paint for sky textures and sun lamps respectively. This is to make live update work as expected
• sky texture's sun size and intensity can now be adjusted with its size and power parameters

[semagnum]

While the changes are pretty radical, since tests are passing and didn't have to change, only bumping a minor version.