merge override

[jonhargett]

Would it be possible to add a merge option to use translations in translation2 to override the translations in translation1?
For instance, if you have 2 po files:

# default.po
msgid "unit"
msgstr "Unit"

# override.po
msgid "unit"
msgstr "Use this instead"

$translations = gt\Translations::fromPoFile($path . '/' . $lang . '/LC_MESSAGES/default.po');
$domainTranslation = gt\Translations::fromPoFile($path . '/' . $lang . '/LC_MESSAGES/override.po');
$translations->mergeWith($domainTranslation, gt\Translations::MERGE_OVERRIDE);

The idea here is that within each language, there would be a default translation and then another translation file that could override some of the msg strings.

[oscarotero]

Good point. I added this constant and am going to release a new version.
Thanks

[jonhargett]

This works great! Thank you very much for your quick response.