• Use named transactions (savepoints) for sqlite transactions to allow the import of postgres results using pg_sqlite to occur within an outer sqlite transaction.
• When doing pg_select, etc, with -variables, distinguish between "::type" which is a cast and ":::type" which is a reference to a glocal Tcl variable named "type".
• Fix use-after-free when disconnecting inside pg_select body.
• Add travis build status icon to readme.
• Bump version to 2.6.2.