Darken ANSI green

Fixes https://github.com/travis-ci/travis-ci/issues/1217
Tweak ANSI cyan values

to values indicated in Standard VGA colors in https://en.wikipedia.org/wiki/ANSI_escape_code

Fixes https://github.com/travis-ci/travis-ci/issues/1667
Detect and link-ify github commit ref in log

Addresses https://github.com/travis-ci/travis-ci/issues/1470
Rearrange github link helpers

So that regex and transformation appear together.
HTTPS everywhere for github.com
Use capitalized text to be consistent
Merge pull request #247 from gark87/russian_l10n

Use capitalized text to be consistent
Add specs for link-ifying commit references
Merge pull request #246 from travis-ci/ha-bug-gh_ci_1470

Link-ify GitHub commit references in logs
Update Japanese locale data [skip ci]
Merge pull request #249 from travis-ci/ha-bug-ja_locale_update

Update Japanese locale data [skip ci]