layouts: change constructor to take a meta object This change is another step forward to centralize subversion configuration options and help refactor. I couldn't find an easier way to split up this change since there are many interdependent function calls. There is no functionality change in this patch, only renaming ui -> meta.

syntax:glob
build
*.pyc
*.pyo
.DS_Store
*.swp
*~
.coverage
cover
*.py,cover
MANIFEST
dist
*.egg-info
hgsubversion/__version__.py
nbproject
.project
.pydevproject
.settings
*.orig
.noseids
tests/fixtures/temp