Update to 3.0101
- New upstream release 3.0101
- Added ithreads support: Cpanel::JSON::XS is now thread-safe
- const'ed a translation table for memory savings
- Fixed booleans for JSON 2.9 and JSON-XS-3.01 interop; JSON does not
support JSON::XS booleans anymore, so I cannot think of any reason to
still use JSON::XS