BibAdd with attachment fails on pages which are not top level

[HMuentinga]

BibAdd fails e.g. in this case:

[[BibAdd(attachment:section/page/bib.bib]] yields Attachment 'wiki:section/page: bib.bib' does not exist..

Patch:

 1.0/tracbib/source.py |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/1.0/tracbib/source.py b/1.0/tracbib/source.py
index e48c5b1..77005b5 100644
--- a/1.0/tracbib/source.py
+++ b/1.0/tracbib/source.py
@@ -124,7 +124,7 @@ class BibtexSourceAttachment(Component):
         page = None
         file = arg[1]

-        path_info = arg[1].split('/', 1)  # greedy! split wikipath and filename
+        path_info = arg[1].rsplit('/', 1)  # greedy! split wikipath and filename

         if len(path_info) > 2:
             raise TracError('Usage: BibAdd(attachment:[path/to/]file)')