[3rdparty] Bump sabre to 3.0.7 (PHP7 support)
[3rdparty] Bump sabre to 3.0.7 (PHP7 support)

cernbox/core,sharidas/core,michaelletzgus/nextcloud-server,IljaN/core,bluelml/core,jbicha/server,owncloud/core,Ardinis/server,xx621998xx/server,whitekiba/server,xx621998xx/server,phil-davis/core,xx621998xx/server,Ardinis/server,owncloud/core,endsguy/server,sharidas/core,nextcloud/server,andreas-p/nextcloud-server,IljaN/core,nextcloud/server,owncloud/core,pollopolea/core,pmattern/server,andreas-p/nextcloud-server,bluelml/core,pmattern/server,jbicha/server,bluelml/core,Ardinis/server,andreas-p/nextcloud-server,sharidas/core,michaelletzgus/nextcloud-server,pmattern/server,andreas-p/nextcloud-server,nextcloud/server,Ardinis/server,jbicha/server,endsguy/server,owncloud/core,endsguy/server,pixelipo/server,pmattern/server,xx621998xx/server,pollopolea/core,andreas-p/nextcloud-server,whitekiba/server,jbicha/server,xx621998xx/server,bluelml/core,whitekiba/server,pollopolea/core,endsguy/server,nextcloud/server,endsguy/server,whitekiba/server,pmattern/server,pixelipo/server,cernbox/core,cernbox/core,IljaN/core,cernbox/core,sharidas/core,pollopolea/core,pixelipo/server,sharidas/core,michaelletzgus/nextcloud-server,pixelipo/server,IljaN/core,michaelletzgus/nextcloud-server,jbicha/server,Ardinis/server,pollopolea/core,cernbox/core,whitekiba/server,owncloud/core,IljaN/core,bluelml/core,pixelipo/server