Mention that RF 2.9 drops Python/Jython 2.5 support.
Mention that RF 2.9 drops Python/Jython 2.5 support.

Fixes #1928.

kyle1986/robortframe,jaloren/robotframework,jorik041/robotframework,joongh/robotframework,fingeronthebutton/robotframework,synsun/robotframework,wojciechtanski/robotframework,jorik041/robotframework,un33k/robotframework,moto-timo/robotframework,Colorfulstan/robotframework,yonglehou/robotframework,robotframework/robotframework,kyle1986/robortframe,dkentw/robotframework,robotframework/robotframework,xiaokeng/robotframework,alexandrul-ci/robotframework,jorik041/robotframework,suvarnaraju/robotframework,jaloren/robotframework,kurtdawg24/robotframework,alexandrul-ci/robotframework,nmrao/robotframework,joongh/robotframework,ashishdeshpande/robotframework,ChrisHirsch/robotframework,fingeronthebutton/robotframework,moto-timo/robotframework,un33k/robotframework,ashishdeshpande/robotframework,alexandrul-ci/robotframework,joongh/robotframework,robotframework/robotframework,snyderr/robotframework,SivagnanamCiena/robotframework,snyderr/robotframework,synsun/robotframework,jorik041/robotframework,nmrao/robotframework,SivagnanamCiena/robotframework,moto-timo/robotframework,SivagnanamCiena/robotframework,kyle1986/robortframe,yonglehou/robotframework,rwarren14/robotframework,ChrisHirsch/robotframework,dkentw/robotframework,snyderr/robotframework,stasiek/robotframework,suvarnaraju/robotframework,JackNokia/robotframework,kurtdawg24/robotframework,userzimmermann/robotframework,un33k/robotframework,jorik041/robotframework,fingeronthebutton/robotframework,yonglehou/robotframework,jaloren/robotframework,Colorfulstan/robotframework,xiaokeng/robotframework,moto-timo/robotframework,snyderr/robotframework,suvarnaraju/robotframework,snyderr/robotframework,wojciechtanski/robotframework,alexandrul-ci/robotframework,userzimmermann/robotframework,jaloren/robotframework,fingeronthebutton/robotframework,userzimmermann/robotframework,stasiek/robotframework,un33k/robotframework,SivagnanamCiena/robotframework,kyle1986/robortframe,synsun/robotframework,yonglehou/robotframework,moto-timo/robotframework,kurtdawg24/robotframework,joongh/robotframework,nmrao/robotframework,alexandrul-ci/robotframework,suvarnaraju/robotframework,userzimmermann/robotframework,xiaokeng/robotframework,xiaokeng/robotframework,synsun/robotframework,kyle1986/robortframe,rwarren14/robotframework,userzimmermann/robotframework,ashishdeshpande/robotframework,ashishdeshpande/robotframework,Colorfulstan/robotframework,stasiek/robotframework,joongh/robotframework,wojciechtanski/robotframework,wojciechtanski/robotframework,HelioGuilherme66/robotframework,Colorfulstan/robotframework,rwarren14/robotframework,rwarren14/robotframework,JackNokia/robotframework,dkentw/robotframework,stasiek/robotframework,kurtdawg24/robotframework,ChrisHirsch/robotframework,yonglehou/robotframework,rwarren14/robotframework,HelioGuilherme66/robotframework,synsun/robotframework,ashishdeshpande/robotframework,un33k/robotframework,JackNokia/robotframework,stasiek/robotframework,nmrao/robotframework,fingeronthebutton/robotframework,dkentw/robotframework,kurtdawg24/robotframework,ChrisHirsch/robotframework,SivagnanamCiena/robotframework,JackNokia/robotframework,dkentw/robotframework,Colorfulstan/robotframework,jaloren/robotframework,JackNokia/robotframework,wojciechtanski/robotframework,nmrao/robotframework,ChrisHirsch/robotframework,xiaokeng/robotframework,HelioGuilherme66/robotframework,suvarnaraju/robotframework