UI localisations updated

- update Bundle for CA, CO, DE, FR, IT, JA, NL, UK, ZH

Signed-off-by: Hiroshi Miura <miurahr@linux.com>

Release version 6.0.0

Signed-off-by: Hiroshi Miura <miurahr@linux.com>

Merge pull request #638 from brandelune/topic/jc/readme/fix/6.0

macOS integration

Release 5.8.0

Signed-off-by: Hiroshi Miura <miurahr@linux.com>

5.7.0 release

5.6.0 release

5.5.0 release

[#1551] Migrate packages from Bintray to Maven Central

https://sourceforge.net/p/omegat/feature-requests/1551/