Version 4.0.12

    - Fix loading not RGB(a) images
    - Pillow 4.2 changed api

Version 4.0.11

- speedup 7z and rar extraction - extract all files,
  if archive solid - extract one file is SLOW

Version 4.0.10

- fix load of lzma/7z archives - new version 7z generates archives not compatible with old pylzma
- fix load of thumbnails if no images loaded of archive not opened
- add .idea folder to ignore

Version 4.0.9

- quick fix opening encrypted archives

Update changelog

Fix docstring

Version 4.0.6

- Update changelog
- Do not install *.pyc