[MERGE] Fix for Bug 129299, BZR_PLUGIN_PATH should ignore trailiing slashes.

[Aaron Bentley]

Aaron Bentley has voted resubmit.
Status is now: Resubmit
Comment:
See comments on list

For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C46C303B4.60109%40latte.ca%3E