Sanitize content for bad character encoded characters

[servilla]

Content being displayed, especially titles, need to be sanitized for non-UTF8 character sets. For example, the below citation includes a long-dash that is not properly encoded:

Palmer Station Antarctica LTER, O. Schofield, and M. Vernet. 2017. Water column primary production from inorganic carbon uptake for 24h at simulated in situ light levels in deck incubators, collected at Palmer Station Antarctica during Palmer LTER field seasons, 1994 � present. ver 4. Environmental Data Initiative. https://doi.org/DOI_PLACE_HOLDER. Accessed 2020-02-10.

[jwbrunt]

This example is from knb-lter-pal.127.4 on staging.