DEIMS ARC fixes and enhancements

Fixes and updates:

  • &nbsp and other non printing characters
    • tidyXml was not cleaning up the &nbsp but will if adding an option of 'utf8' And if the text from plain text content then tidy library is not loaded so added additional cleanup
  • The second line of a person's address is not added to the eml address field See Github commit
  • Repopulating the cache_lter_unit table
  • Update to Ubuntu 16.04 thus php 7
    • Needed then to updated modules that had issues with php 7
  • And many secruity updates