Deal with not being able to write to the main tree
Deal with not being able to write to the main tree

If we have a system wide ruby install that we have no permissions on,
but are doing, for example, a bundle install, we can't expect to write
to the system install location. So in that case, just drop files into
the cwd and move along. Fixes #9

cldwalker/debugger-ruby_core_source,dirknilius/debase-ruby_core_source,mark-moseley/ruby_core_source,dirknilius/debase-ruby_core_source,cldwalker/debugger-ruby_core_source,dirknilius/debase-ruby_core_source,dirknilius/debase-ruby_core_source,cldwalker/debugger-ruby_core_source