rbtools git client fails if core.bare is unset
Review Request #5342 — Created Jan. 28, 2014 and submitted
sometimes git repositories are configured without core.bare being set (using git repo tool for example, or using msysgit on windows)
however current rbtools git client implementation breaks when such config is met.
Moreover in man git-config core.bare can be "1" or "true" so add "1" in list of values checked
post successfully this draft review * with core.bare = false from .git/config * without core.bare = false from .git/config
