it's now possible to add an '-' in front of all constraints (all search modifiers starting with '/') to invert the search constraint.
it's now possible to add an '-' in front of all constraints (all search
modifiers starting with '/') to invert the search constraint.

Example: you can search for images of cats using ```cat /image``` and
now it is possible to search for all tweets about cats which do not have
images attached with ```cat -/image```
fazeem84/susi_server,smokingwheels/loklak_server_frontend_hdd,arashahmadi/sensemi_ai,kavithaenair/apps.loklak.org,daminisatya/loklak_server,karajrish/loklak_server,smokingwheels/loklak_server_frontend_hdd,karajrish/loklak_server,sudheesh001/loklak_server,kavithaenair/apps.loklak.org,DravitLochan/susi_server,gopalmeena/loklak_server,smsunarto/loklak_server,YagoGG/loklak_server,smsunarto/loklak_server,loklak/loklak_server,loklak/loklak_server,daminisatya/loklak_server,shivenmian/loklak_server,djmgit/apps.loklak.org,YagoGG/loklak_server,YagoGG/loklak_server,shivenmian/loklak_server,DravitLochan/susi_server,smsunarto/loklak_server,fazeem84/susi_server,smsunarto/loklak_server,PiotrKowalski/loklak_server,shivenmian/loklak_server,singhpratyush/loklak_server,djmgit/apps.loklak.org,djmgit/apps.loklak.org,singhpratyush/loklak_server,shivenmian/loklak_server,YagoGG/loklak_server,smokingwheels/loklak_server_frontend_hdd,YagoGG/loklak_server,smokingwheels/loklak_server_frontend_hdd,loklak/loklak_server,smokingwheels/loklak_server_frontend_hdd,gopalmeena/loklak_server,sudheesh001/loklak_server,arashahmadi/sensemi_ai,DravitLochan/susi_server,sudheesh001/loklak_server,PiotrKowalski/loklak_server,wavicles/loklak_server,singhpratyush/loklak_server,sudheesh001/loklak_server,sudheesh001/loklak_server,karajrish/loklak_server,DravitLochan/susi_server,daminisatya/loklak_server,smokingwheels/loklak_server_frontend_hdd,kavithaenair/apps.loklak.org,PiotrKowalski/loklak_server,djmgit/apps.loklak.org,singhpratyush/loklak_server,shivenmian/loklak_server,smsunarto/loklak_server,fazeem84/susi_server,loklak/loklak_server,singhpratyush/loklak_server,arashahmadi/sensemi_ai,daminisatya/loklak_server,gopalmeena/loklak_server,arashahmadi/sensemi_ai,sudheesh001/loklak_server,fazeem84/susi_server,wavicles/loklak_server,gopalmeena/loklak_server,wavicles/loklak_server,gopalmeena/loklak_server,PiotrKowalski/loklak_server,daminisatya/loklak_server,karajrish/loklak_server,loklak/loklak_server,PiotrKowalski/loklak_server,sudheesh001/loklak_server,singhpratyush/loklak_server,smsunarto/loklak_server,PiotrKowalski/loklak_server,shivenmian/loklak_server,kavithaenair/apps.loklak.org,smokingwheels/loklak_server_frontend_hdd,daminisatya/loklak_server,YagoGG/loklak_server,loklak/loklak_server,shivenmian/loklak_server,YagoGG/loklak_server,loklak/loklak_server,wavicles/loklak_server,smsunarto/loklak_server,gopalmeena/loklak_server,PiotrKowalski/loklak_server,daminisatya/loklak_server,singhpratyush/loklak_server