[#1091] Text change to the additional data
Merge branch '1091-additional-data-info-whatever'
[#1119] Text preview was made for XML and Json. Increase their precendence. Also typos.
Merge branch '1119-text-preview-can-preview-xml-and-json'
[#1119] Pep 8
[#1119] This is the PEP8 I meant