BuiltinCore: gracefully handle existing lock on pidfile
Git: fix command debug log without GitPython installed
Core: fixed pylint tests for wildcard imports
tools: write all changed files when migrating perms to mode
Core: added docstring for load_plugins
bcfg2-info: fixed for new load_plugins() routine
pylint fix for Bcfg2.settings
bcfg2-info: fixed "bcfg2-info clients" when using clients database