OF-1270 fix Readme
OF-1270 fix Readme

Version and build date are already in the changelog. Other than that Readme is static. Fixed a few links and removed cheerful thanking. When user looks at it online, he hasn't yet downloaded anything. When he has installed it already, thanking for downloading seems out of place.
akrherz/Openfire,Gugli/Openfire,Gugli/Openfire,igniterealtime/Openfire,akrherz/Openfire,speedy01/Openfire,speedy01/Openfire,guusdk/Openfire,akrherz/Openfire,speedy01/Openfire,guusdk/Openfire,GregDThomas/Openfire,speedy01/Openfire,guusdk/Openfire,igniterealtime/Openfire,Gugli/Openfire,GregDThomas/Openfire,GregDThomas/Openfire,igniterealtime/Openfire,guusdk/Openfire,speedy01/Openfire,GregDThomas/Openfire,igniterealtime/Openfire,igniterealtime/Openfire,Gugli/Openfire,GregDThomas/Openfire,akrherz/Openfire,akrherz/Openfire,guusdk/Openfire,Gugli/Openfire