Using require_relative instead of require results in a roughly 12% improvement in the time it takes to load rspec-core's own lib files
Use require_relative inplace of standard require if available.
Create the fakefs home directory path so writes to ~/.rspec succeed
- #430 - generates .rspec if not present - generates spec/spec_helper if not present - offers to delete obsolete autotest/discover.rb if present - offers to delete obsolete lib/tasks/rspec.rake if present
- Closes #430.
…ing describes for now)
…hods (more descriptive) - also add more rdoc