- broke pool tests out into QueuePoolTest/SingletonThreadPoolTest - added test for r5061/r5062 [ticket:1157]
- broke pool tests out into QueuePoolTest/SingletonThreadPoolTest
- added test for r5061/r5062 [ticket:1157]

robin900/sqlalchemy,robin900/sqlalchemy,276361270/sqlalchemy,alex/sqlalchemy,ThiefMaster/sqlalchemy,monetate/sqlalchemy,276361270/sqlalchemy,hsum/sqlalchemy,graingert/sqlalchemy,itkovian/sqlalchemy,ThiefMaster/sqlalchemy,Akrog/sqlalchemy,davidjb/sqlalchemy,j5int/sqlalchemy,WinterNis/sqlalchemy,halfcrazy/sqlalchemy,brianv0/sqlalchemy,Cito/sqlalchemy,zzzeek/sqlalchemy,inspirehep/sqlalchemy,bdupharm/sqlalchemy,monetate/sqlalchemy,wfxiang08/sqlalchemy,olemis/sqlalchemy,alex/sqlalchemy,sqlalchemy/sqlalchemy,dstufft/sqlalchemy,wujuguang/sqlalchemy,EvaSDK/sqlalchemy,graingert/sqlalchemy,WinterNis/sqlalchemy,sandan/sqlalchemy,bdupharm/sqlalchemy,alex/sqlalchemy,Cito/sqlalchemy,wujuguang/sqlalchemy,bootandy/sqlalchemy,davidfraser/sqlalchemy,Akrog/sqlalchemy,wfxiang08/sqlalchemy,epa/sqlalchemy,hsum/sqlalchemy,davidfraser/sqlalchemy,pdufour/sqlalchemy,pdufour/sqlalchemy,j5int/sqlalchemy,elelianghh/sqlalchemy,inspirehep/sqlalchemy,brianv0/sqlalchemy,bootandy/sqlalchemy,davidjb/sqlalchemy,halfcrazy/sqlalchemy,EvaSDK/sqlalchemy,dstufft/sqlalchemy,Cito/sqlalchemy,sandan/sqlalchemy,epa/sqlalchemy,elelianghh/sqlalchemy,itkovian/sqlalchemy,olemis/sqlalchemy