Move collecting of [keyword] patterns to reposetup (issue2303)
When cloning, prevent [keyword] filename patterns configured locally
in the source directory to persist during the update in the destination.
a) move [keyword] retrieval (back) to reposetup
b) remove the corresponding global kwtools attributes
Add test cases.
syntax: glob
*.pyc
*.pyo
*~
*.swp
*.orig
*.rej
.DS_Store
build/*
MANIFEST