Rename Czech locale from cz to cs as per ISO 639-1
Improve i18n french (Tolk workflow)

Miscellaneous improvements from orthographic or translation mistakes to
typographic conventions (restrained to existing keys). Add some missing
strings.
Merge pull request #144 from nibua-r/french-i18n-improvements

Improve i18n french (Tolk workflow)
Particularize a project partial for french language

Words order isn't the same for fr projects state labels. This commit
duplicate the default partial and reorder the wording for fr.
Improve fr i18n (minor)

Fixes orthographic mistakes and some case-related issues.
Merge pull request #145 from nibua-r/french-i18n-improvements

French i18n improvements