Fill in some of Squash's standard metadata fields, and change 'environment' according to the release type. (-debug says the developer is running from source)
Debug: Change error reporter to use squash_python

This completely obsoletes errorreporting.py.
Submodule pymclevel updated.

Submodule pymclevel:
    > 1674f6f - Fixed: Wooden buttons (id 143) not rotating. Fixes mcedit/mcedit#278
    > b0fd34d - Fixed: Off-by-one error in schematic export with extended IDs.
    > c60c3f2 - Added: RegionFile now touches the chunk's timestamp field whenever a chunk is saved.
Remove forced eol conversion
Debug: Import OpenGL.GL while the log level is raised to hide some warnings.
Debug: Use -v and -vv to set log level.
Debug: Log messages have fixed width fields, and the file and lineno now share a field.
Submodule pymclevel updated.

Submodule pymclevel:
    > c830ee6 - Fixed: Schematic entities have wrong positions after rotating.
    > 57e5188 - Debug: Change loggers to use __name__ instead of __file__
Debug: Don't fatally crash if something happens when recording exception data
Fixed: Changing the "Report Errors" setting now updates the setting on the squash client object
Remove the last remaining chunk.decompress