Change version format to allow MAJOR.MINOR.PATCH.
Change version format to allow MAJOR.MINOR.PATCH.

lzedl/PyMySQL,MartinThoma/PyMySQL,methane/PyMySQL,Geoion/Tornado-MySQL,eibanez/PyMySQL,PyMySQL/PyMySQL,Ting-y/PyMySQL,boneyao/PyMySQL,pymysql/pymysql,mosquito/Tornado-MySQL,wraziens/PyMySQL,PyMySQL/Tornado-MySQL,jheld/PyMySQL,pulsar314/Tornado-MySQL,eibanez/PyMySQL,modulexcite/PyMySQL,yeyinzhu3211/PyMySQL,yeyinzhu3211/PyMySQL,aio-libs/aiomysql,DashaChuk/PyMySQL,xjzhou/PyMySQL,nju520/PyMySQL,anson-tang/PyMySQL,xjzhou/PyMySQL,NunoEdgarGub1/PyMySQL,jwjohns/PyMySQL,lzedl/PyMySQL,wraziens/PyMySQL