Log Message:
gallery-dl: Update net/gallery-dl to 1.5.0

Changes:
1.5.0
-----
- Added support for:
  - `behance` - https://www.behance.net/
  - `myportfolio` - https://www.myportfolio.com/ (#95)
- Added custom format string options to handle long strings (#92, #94)
  - Slicing: `"{field[10:40]}"`
  - Replacement: `"{field:L40/too long/}"`
- Improved frame rate handling for ugoira conversions
- Improved private access token usage on `deviantart`
- Fixed metadata extraction for some images on `nijie`
- Fixed chapter extraction on `mangahere`
- Removed `whatisthisimnotgoodwithcomputers`
- Removed support for Python 3.3