improvement for map_type parameter
improvement for map_type parameter

  * field mapping with deep upsert : name:user.screen_name will insert
{screen_name : value } to 'user' attribute, not json root ('user' will
be created if necessary)
  * mapping multiple loklak fields to one gejson field :
name:user.screen_name,name:screen_name is possible and will insert name
value at 2 different positions

Conflicts:
	src/org/loklak/api/server/GeoJsonPushServlet.java

shivenmian/loklak_server,fazeem84/susi_server,sudheesh001/loklak_server,shivenmian/loklak_server,djmgit/apps.loklak.org,gopalmeena/loklak_server,sudheesh001/loklak_server,gopalmeena/loklak_server,gopalmeena/loklak_server,smokingwheels/loklak_server_frontend_hdd,djmgit/apps.loklak.org,YagoGG/loklak_server,smokingwheels/loklak_server_frontend_hdd,kavithaenair/apps.loklak.org,PiotrKowalski/loklak_server,loklak/loklak_server,PiotrKowalski/loklak_server,daminisatya/loklak_server,fazeem84/susi_server,arashahmadi/sensemi_ai,smokingwheels/loklak_server_frontend_hdd,kavithaenair/apps.loklak.org,daminisatya/loklak_server,sudheesh001/loklak_server,PiotrKowalski/loklak_server,DravitLochan/susi_server,YagoGG/loklak_server,gopalmeena/loklak_server,shivenmian/loklak_server,daminisatya/loklak_server,wavicles/loklak_server,sudheesh001/loklak_server,singhpratyush/loklak_server,YagoGG/loklak_server,djmgit/apps.loklak.org,smokingwheels/loklak_server_frontend_hdd,singhpratyush/loklak_server,daminisatya/loklak_server,DravitLochan/susi_server,singhpratyush/loklak_server,shivenmian/loklak_server,PiotrKowalski/loklak_server,singhpratyush/loklak_server,PiotrKowalski/loklak_server,sudheesh001/loklak_server,loklak/loklak_server,singhpratyush/loklak_server,arashahmadi/sensemi_ai,YagoGG/loklak_server,smsunarto/loklak_server,sudheesh001/loklak_server,arashahmadi/sensemi_ai,fazeem84/susi_server,loklak/loklak_server,kavithaenair/apps.loklak.org,singhpratyush/loklak_server,smokingwheels/loklak_server_frontend_hdd,shivenmian/loklak_server,karajrish/loklak_server,fazeem84/susi_server,DravitLochan/susi_server,djmgit/apps.loklak.org,shivenmian/loklak_server,smsunarto/loklak_server,smsunarto/loklak_server,smsunarto/loklak_server,daminisatya/loklak_server,PiotrKowalski/loklak_server,YagoGG/loklak_server,YagoGG/loklak_server,smsunarto/loklak_server,loklak/loklak_server,loklak/loklak_server,daminisatya/loklak_server,PiotrKowalski/loklak_server,karajrish/loklak_server,karajrish/loklak_server,gopalmeena/loklak_server,sudheesh001/loklak_server,DravitLochan/susi_server,daminisatya/loklak_server,shivenmian/loklak_server,wavicles/loklak_server,gopalmeena/loklak_server,kavithaenair/apps.loklak.org,loklak/loklak_server,YagoGG/loklak_server,smokingwheels/loklak_server_frontend_hdd,arashahmadi/sensemi_ai,loklak/loklak_server,wavicles/loklak_server,smsunarto/loklak_server,smsunarto/loklak_server,karajrish/loklak_server,smokingwheels/loklak_server_frontend_hdd,wavicles/loklak_server,singhpratyush/loklak_server