[enh] 1st version of filecrop engine, to discover how searx works
 [enh] 1st version of filecrop engine, to discover how searx works
Merge branch 'filecrop' of https://github.com/pw3t/searx into filecrop

Conflicts:
	searx/engines/filecrop.py
Merge branch 'filecrop'
[enh] add support for yacy engine (localhost)
[fix] fix an error in the query