Massively improve search engine capabilities#33

Open

jplitza wants to merge 5 commits intotruly-systems:masterfrom

Commits on Nov 1, 2019

search_engine: Make requests assemble the GET params
Jan-Philipp Litza
committed
search_engine: Allow to pass other parameters
Jan-Philipp Litza
committed

Commits on Nov 7, 2019

search_engine: Also map forcedisplay values to field IDs
Jan-Philipp Litza
committed
search_engine: Support nested filter groups
Jan-Philipp Litza
committed

Commits on Nov 13, 2019

Fix for Python 2.7 (no "yield from")
Jan-Philipp Litza
committed