Fix hg prompt functionality for Python 3.8 Includes Mathieu Clabaut's Python 3.8 patch (https://bitbucket.org/sjl/hg-prompt/issues/45/python-38-port) and reverts 0850e9a3 where the author stripped incoming/outgoing functionality (because I use it)

syntax "xml" "\.(xml|svg)$"
comment "<!--|-->"

color brightblue start="<[a-zA-Z/]" end=">"
color red "&[^;[[:space:]]]*;"
color yellow ""[^"]*"" "'[^']*'"
color green start="<!--" end="-->"
color magenta start="<!\[CDATA\[" end="\]\]>"