This change allows for parallel downloads of HTML pages upto a maximum
number of concurrent HTTP requests which is more efficient than
before where all HTTP requests are likely to begin at the same time.
- Prevent downloading images with base64 strings as the source
- Add escaping of quotation characters in the serializer
- Disable redirects when downloading images which fails on multiple sites
- Remove invalid characters for making the epub export file name
- Fix version number in release
The bug fixes are for:
- <base> elements with "/" as the href
- articles containing an ampersand in the title which would create
corrupted manifest files.
Change from using res directory for image downloads to using temp directories.
Update surf to v2 which required changing the way Content-Type headers are
read from.
