[Svnmerge] [PATCH] svnmerge.py: Refactor analyze_revs

[David James]

This patch simplifies svnmerge.py by refactoring analyze_revs. I'm
doing this refactoring now so that it will be easier to add new
features (like complex merge tracking) later.

[[[
Refactor analyze_revs, creating a separate function called "find_changes"
for finding which revisions and merges affect a given URL.

* contrib/client-side/svnmerge.py
  (find_changes): New function.
  (analyze_revs): Use find_changes function.
]]]

--
David James -- http://www.cs.toronto.edu/~james