fix #3618: hint & log images are improperly displayed
fix #3618: hint & log images are improperly displayed

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