Change log update
Change log update

I set major new features (such as #6) on top and added missing things (which are not in release branch as well)
superspindel/cgeo,schwabe/cgeo,SammysHP/cgeo,schwabe/cgeo,lewurm/cgeo,yummy222/cgeo,lewurm/cgeo,brok85/cgeo,superspindel/cgeo,cgeo/cgeo,vishwakulkarni/cgeo,S-Bartfast/cgeo,rsudev/c-geo-opensource,marco-dev/c-geo-opensource,brok85/cgeo,vishwakulkarni/cgeo,auricgoldfinger/cgeo,cgeo/cgeo,Bananeweizen/cgeo,matej116/cgeo,yummy222/cgeo,Huertix/cgeo,xiaoyanit/cgeo,pstorch/cgeo,samueltardieu/cgeo,ThibaultR/cgeo,matej116/cgeo,samueltardieu/cgeo,cgeo/cgeo,S-Bartfast/cgeo,auricgoldfinger/cgeo,S-Bartfast/cgeo,rsudev/c-geo-opensource,KublaikhanGeek/cgeo,KublaikhanGeek/cgeo,SammysHP/cgeo,schwabe/cgeo,samueltardieu/cgeo,mucek4/cgeo,SammysHP/cgeo,pstorch/cgeo,Bananeweizen/cgeo,vishwakulkarni/cgeo,pstorch/cgeo,madankb/cgeo,yummy222/cgeo,mucek4/cgeo,rsudev/c-geo-opensource,tobiasge/cgeo,ThibaultR/cgeo,auricgoldfinger/cgeo,lewurm/cgeo,kumy/cgeo,cgeo/cgeo,brok85/cgeo,Huertix/cgeo,madankb/cgeo,tobiasge/cgeo,KublaikhanGeek/cgeo,marco-dev/c-geo-opensource,marco-dev/c-geo-opensource,tobiasge/cgeo,superspindel/cgeo,ThibaultR/cgeo,madankb/cgeo,matej116/cgeo,xiaoyanit/cgeo,kumy/cgeo,Bananeweizen/cgeo,mucek4/cgeo,xiaoyanit/cgeo,Huertix/cgeo,kumy/cgeo,schwabe/cgeo