Use StatusEntry class instead of repeated status line parsing.
This small cleanup abstracts out repeated instances of
(rev, name) = applied[x].split(':'), making it easier to use
applied or change the status file format.
#!/bin/sh
hg init
python -c 'print "confuse str.splitlines\nembedded\rnewline"' > a
hg ci -Ama -d '1 0'
echo clean diff >> a
hg ci -mb -d '2 0'
hg diff -r0 -r1