Enable building for Ruby 2.0.0 on Travis.
Adding more assertions for the "-d" flag

which looks like it's going to break for rbx, so I'll be headed there next...
Array#repeated_combination: order is implementation dependent
Array#repeated_permutation: order is implementation dependent
Array#select! improve specs I wrote incorrectly 3 years ago
Fix error label
Tweak specs for explicitness
Float#round: fix spec I managed to screw up twice
Simplify specs
Tweak ruby_version number for each_with_object
Assumption was require_relative will always be passed a relative path. Added specs for when passed an absolute path.
Merge pull request #184 from yb66/reqrelabs

Added specs for require_relative to handle absolute paths
Specs for Hash when key has private hash method
Spec Kernel#lambda passing a Proc with &
Fix typos in proc specs
Fix coding style for :shared
Add specs for rb_sprintf
Quarantine specs for NULL bytes and String#crypt

Looks like newer versions of Glibc started throwing errors for this. The
behavior therefore isn't consistent on Linux.

Fixes #2168
Added specs for rb_obj_instance_variables
Fixed Process.getrlimit specs.