Fix a problem with quotes for language=fr

[pierre-viret]

The quotes of the localized messages were not displayed and unit test "LocalisationHelperTest" crashed because the argument were not replaced.

• DataReaderFacade.java: use the LocalisationHelper.getString with arguments
  instead of performing the format ourself.
• localStrings_fr.properties: replace each single quote with two single
  quotes as stated in the javadoc of MessageFormat class:
  https://docs.oracle.com/javase/8/docs/api/java/text/MessageFormat.html#patterns
  Otherwise the single quote won't appear in the message and the arguments are not parsed.

[chewiebug]

Hi Pierre,

Thank you very much for your contribution! I have merged it into develop branch.

For a next contribution, you could help me make the merge much easier, if you

• branched off develop branch; that's my main branch for development (master is the last release -> rather outdated), my automated checks will also be much more meaningful.
• wouldn't introduce so many "dummy" changes (\u00E9 -> \u00e9 in the properties file; they hide, what you intended to change and make review difficult for me)

Best regards,
Jörg

[pierre-viret]

Hello Jörg

Thank you for your feedback. Sorry that I have chosen the master branch: I didn't notice that we have to work with the develop branch, but now it's clear.
Concerning the changes like \u00E9 -> \u00e9: they must have to do with my git settings because locally I didn't have seen them when I have committed and pushed to my remote repository. I have only seen these changes when I have made the pull request. I will check this to avoid such annoyance in the future.

Best regards,
Pierre

[chewiebug]

Hi Pierre, Thank you very much for the explanations - I hope to see more pull requests from your side :-)! Best regards, Jörg