Prolong aruba timeout to 60 even on Rubinius.
Disable Rubinius' JIT when running aruba tests.
Use bold instead of failure color for profile output.

The red makes it look like something failed.

The outer calls to detail_color were not having any effect due to
internal colors.
Merge pull request #971 from mmb/profile_color

Use detail color instead of failure color for profile output.
expose exe file location
Merge pull request #988 from razielgn/rbx-changes

Improve Rubinius support in aruba tests.
Merge pull request #992 from rspec/expose_exe

Expose exe file location
Add space between args.
Update `path_to_executable` spec so it doesn't simply mirror implementation.

- Verify the file exists.
- Verify it's an executable.