Fixed: Unicode encode errors in update status callback
Debug: Duplicate UnicodeErrors not having exception names removed
Ignore ENV32, virtualenv for 32-bit python on 64-bit windows
Submodule pymclevel updated.

Submodule pymclevel:
    > c19ba58 - Rename Block 36 to Piston Movement Placeholder
    > 391883f - End Portal Frames are transparent. Fixes #121
    > b2af2d8 - Added block 36