1.1: fixed task loading so project plugins override bundled plugins (closes #2880 - thanks carl) 
1.1: fixed task loading so project plugins override bundled plugins (closes #2880 - thanks carl) 


git-svn-id: 7038a89b398528086dab5106cc8d05243a854dbc@8597 ee427ae8-e902-0410-961c-c3ed070cd9f9

theodo/symfony1.1-backports,theodo/symfony1.1-backports,theodo/symfony1.1-backports