Observatory card update info, not pulled to the right

[ferblape]

Looks like the updated date of a card is not being placed to the right. It uses the class pull-right but looks like that class has been lost in the CSS.

[ferblape]

Also:

1. Align the ? with the text
2. Remove the underline between FB and Twitter icons?
3. It looks like the source name and URL are not displayed now, but the data is in the JSON, investigate why:

[Crashillo]

pull-right class has been deprecated as of fontAwesome 4.4. It has been replaced by fa-pull-right

Further info: FortAwesome/Font-Awesome#12236

UPDATE
1 & 2 list-items will be solved then

[Crashillo]

Source name wasn't displayed because json.metadata.indicators has changed the key, from ["source name"] to ["source_name"]. Apparently, it doesn't affect anything else, but keep that in mind.
However, two new glitches have came up:

1. Card bars breaks the layout when bars is too long
   
2. Population Pyramid is throwing a javascript error, so it's not displayed. I'm trying to figure out what's about.

Both errors could be checked at staging

[Crashillo]

Population Pyramid javascript error has been solved, but I think it's a workaround:
package.json now includes a "resolution" field, in order to force d3-selection to use 1.4.0 version. Check the commit:
https://github.com/PopulateTools/gobierto/pull/2273/files#diff-b9cfc7f2cdf78a7f4b91a753d10865a2

Issue is due to yarn dependency resolver brought multiple d3-selection version, so it's required to set only one valid version. Check extra info here.

I think it's a workaround, as d3-selection may update someday. package.json resolutions field sets a static version.