PySqlite backend: disable connection pooling, except on Windows. This was triggering crashes on Linux, so we can't keep connection pooling enabled until this gets fixed upstream (pysqlite:ticket:187).
PySqlite backend: disable connection pooling, except on Windows. This was triggering crashes on Linux, so we can't keep connection pooling enabled until this gets fixed upstream (pysqlite:ticket:187).

git-svn-id: f68c6b3b1dcd5d00a2560c384475aaef3bc99487@4493 af82e41b-90c4-0310-8c96-b1721e28e2e2

exocad/exotrac,dafrito/trac-mirror,moreati/trac-gitsvn,dafrito/trac-mirror,dafrito/trac-mirror,exocad/exotrac,moreati/trac-gitsvn,dokipen/trac,exocad/exotrac,dokipen/trac,dafrito/trac-mirror,moreati/trac-gitsvn,dokipen/trac,moreati/trac-gitsvn,exocad/exotrac