URL for log images has changed, update it
URL for log images has changed, update it

Noticed in #470.

superspindel/cgeo,schwabe/cgeo,Bananeweizen/cgeo,superspindel/cgeo,brok85/cgeo,Huertix/cgeo,S-Bartfast/cgeo,auricgoldfinger/cgeo,kumy/cgeo,pstorch/cgeo,cgeo/cgeo,marco-dev/c-geo-opensource,schwabe/cgeo,tobiasge/cgeo,samueltardieu/cgeo,samueltardieu/cgeo,marco-dev/c-geo-opensource,SammysHP/cgeo,vishwakulkarni/cgeo,auricgoldfinger/cgeo,SammysHP/cgeo,lewurm/cgeo,brok85/cgeo,yummy222/cgeo,cgeo/cgeo,KublaikhanGeek/cgeo,matej116/cgeo,yummy222/cgeo,Huertix/cgeo,Bananeweizen/cgeo,vishwakulkarni/cgeo,cgeo/cgeo,KublaikhanGeek/cgeo,mucek4/cgeo,lewurm/cgeo,rsudev/c-geo-opensource,rsudev/c-geo-opensource,schwabe/cgeo,Bananeweizen/cgeo,brok85/cgeo,pstorch/cgeo,madankb/cgeo,vishwakulkarni/cgeo,matej116/cgeo,ThibaultR/cgeo,kumy/cgeo,tobiasge/cgeo,Huertix/cgeo,matej116/cgeo,tobiasge/cgeo,lewurm/cgeo,madankb/cgeo,marco-dev/c-geo-opensource,yummy222/cgeo,superspindel/cgeo,xiaoyanit/cgeo,KublaikhanGeek/cgeo,ThibaultR/cgeo,S-Bartfast/cgeo,SammysHP/cgeo,auricgoldfinger/cgeo,xiaoyanit/cgeo,pstorch/cgeo,samueltardieu/cgeo,mucek4/cgeo,ThibaultR/cgeo,madankb/cgeo,mucek4/cgeo,S-Bartfast/cgeo,rsudev/c-geo-opensource,schwabe/cgeo,xiaoyanit/cgeo,kumy/cgeo,cgeo/cgeo