Gallery-dl

- Added new extractors:
- whentai
- readcomiconline
- sensescans, worldthree
- imgmaid, imagevenue, img4ever, imgspot, imgtrial, pixhost
- Added base class for extractors of [FoOlSlide](https://foolcode.github.io/FoOlSlide/)-based sites
- Changed default paths for configuration files on Windows
- old paths are still supported, but that will change in future versions
- Fixed aborting downloads if a single one failed ([5](https://github.com/mikf/gallery-dl/issues/5))
- Fixed cloudflare-bypass cache containing outdated cookies
- Fixed image URLs for hitomi and 8chan
- Updated deviantart to always provide the highest quality image
- Updated README.rst
- Removed doujinmode extractor

- Added new extractors:
- hentaihere
- dokireader
- twitter
- rapidimg, picmaniac
- Added support to find filename extensions by Content-Type response header
- Fixed filename/path issues on Windows ([4](https://github.com/mikf/gallery-dl/issues/4)):
- Enable path names with more than 260 characters
- Remove trailing spaces in path segments
- Updated Job class to automatically set category/subcategory keywords

- Added new extractors:
- pinterest
- rule34
- dynastyscans
- imagebam, coreimg, imgcandy, imgtrex
- Added login capabilities for batoto
- Added `--version` cmdline argument to print the current program version and exit
- Added `--list-extractors` cmdline argument to print names of all extractor classes together with descriptions and example URLs
- Added proper error messages if an image/user does not exist
- Added unittests for every extractor

- Added new extractors:
- luscious
- doujinmode
- hentaibox
- seiga
- imagefap
- Changed error output to use stderr instead of stdout
- Fixed broken pipes causing an exception-dump by catching BrokenPipeErrors

- New modules (imagetwist, turboimagehost)
- Manga-extractors: Download entire manga and not just single chapters
- Generic extractor (provisional)
- Better and configurable console output
- Windows support