Developers see PLC/SSI lists.

[#79318094, #79317980]
Rename (sdn|nsp)_type to just "type".
Search over all CSL sources if given one is unknown.

This is better than searching over *every* index like we do now.
Updated source data file information.
Added --force-confnew to repair problem with travis elasticsearch installation.
Merge pull request #24 from GovWizely/calum/csl-plc-and-ssi-sources

CSL: PLC and SSI sources