Change version to 1.15
Change version to 1.15

Before you ask: Wurst v2.0 is not cancelled, but delayed.
nerdtron123/Wurst-Client,kim-yannick/Wurst-Client,kim-yannick/Wurst-Client,Elviond/Wurst-Client,Sapu98/prova,Wikiwiki007/Wurst-Client,null-dev/EvenWurse,Elviond/Wurst-Client,Sapu98/prova,null-dev/EvenWurse,nerdtron123/Wurst-Client,MrAyedzMCz/Wurst-Client,MrAyedzMCz/Wurst-Client,Wikiwiki007/Wurst-Client