* libxml2: fix the build
See #1917
* libxml2-python: Build with Python 3
* itstool: Build with Python 3
* libxslt: fix the build
See #1917
* libxslt: Drop libxslt-python
* yelp-xsl: Don't depend on libxslt-python
Doesn't look like it is used
* yelp-tools: Don't depend on libxslt-python
Doesn't seem to be used
* rarian: Don't depend on libxslt-python
libxslt seems enough
* upgrade some broken packages
* correct some broken urls/checksums
* use secure urls where possible
* use stable url for ncurses
* some whitespace fixes
Remaining md5sums either didn't download or
didn't pass checksum tests.
