v0.14

• Optimized adding distance to the database some more. Seems to have shaved off half a second on my 85-genome assemblies test set with 32 or 64 threads.
• Added --version. It is also shown in the documentation but not yet in README.md.
• Made compatible with CPAN and Travis CI. This includes unit tests. So far v0.12 is in CPAN.
• Checking for files of the same basename in case multiple input directories are involved.