Remove ValueError handling when getting stats from gitpython - I've fixed that bug in gitpython.

diff --git a/pygit/pygit.py b/pygit/pygit.py
index 435449b..cef4d22 100644
--- a/pygit/pygit.py
+++ b/pygit/pygit.py
@@ -139,11 +139,7 @@ def group_by_date(lst):
   st = dict(lines=0,files=0,insertions=0,deletions=0)
   count = 0
   for dt,cm in d:
-    try:
-      c_stats = cm.stats.total # Sometimes GitPython raises ValueError here
-    except ValueError:
-      pass
-    else:
+      c_stats = cm.stats.total
       if dt == prev:
         count += 1
         st['lines'] += c_stats['lines']
@@ -162,6 +158,7 @@ def group_by_date(lst):
 def commits_stats(rid,branch='master'):
   r = open_repo(rid)
   d = r.commits(branch,max_count=200)
+  d = [c for c in d if c.parents]
   grp = group_by_date(d)
   dates = [g[0] for g in grp]
   n_commits = [g[1] for g in grp]
diff --git a/pygit/views.py b/pygit/views.py
index 543e8b0..4cad285 100644
--- a/pygit/views.py
+++ b/pygit/views.py
@@ -28,7 +28,6 @@ def all_repos(request):
       {'repos': pygit.repos()},
       request)

-
 def cached_stats(rid,branch,cid):
   r = cache.get('git_stats_%s' % cid)
   if r:
@@ -48,6 +47,7 @@ def one_repo(request,rid,branch='master'):
   cid = cs[0][0]
   dirs,files = pygit.root_tree(rid,branch)
   dates,n_commits,files_s,lines,inss,dels = cached_stats(rid,branch,cid)
+  print dates

   cht = Chart(900,200,n=2)
   cht.set_scale(1,len(inss)-1,max(max(inss),max(dels)))