Renaming popreg to popReg, step 1
Renaming popreg to popReg, step 2
Adding bitly link button to popByAge tool
Merge branch 'feature/i18n-translations' of https://github.com/Gapminder/G3 into popbyage-overlay
Merge branch 'develop' of https://github.com/Gapminder/G3 into popbyage-overlay
Adding (empty) about data link
Merge branch 'popbyage-overlay' into develop