bump pq
bump pq

Submodule src/github.com/lib/pq 8910d1c..ffe986a:
  > Test against Go 1.5 on Travis
  > Add more checks for protocol-out-of-sync problems
  > Document that readBuf.int16() is unsigned
  > Add extra check for protocol-out-of-sync problems
  > Also send prepared statements' parameters over in binary
  > Add Chris Gilling to the list of contributors
  > Implement driver option binary_parameters
  > Smallish extended query logic refactoring
  > Rename some poorly named functions and variables
  > Use rowFmtDataAllText if there are no result columns
  > Transparently receive parameters in binary format when possible
  > Decouple rows and stmt
  > Refactor writeBuf
  > Fix bugs in errRecoverNoErrBadConn
  > ListenerConn: Improve implementation of Close
  > ListenerConn: Report better errors from sendSimpleQuery
  > ListenerConn: Return l.err instead of EOF on query failure
  > Add call to Gosched to the deadlock test case
  > ListenerConn: Fix deadlock when connection is lost while a query is queued
  > Fix copy test failure in postgres HEAD

CloudCredo/concourse,cjcjameson/concourse,concourse/concourse,CloudCredo/concourse,zachgersh/concourse,concourse/concourse,zachgersh/concourse,longnguyen11288/concourse,longnguyen11288/concourse,cjcjameson/concourse,longnguyen11288/concourse,cjcjameson/concourse,concourse/concourse,concourse/concourse,concourse/concourse,zachgersh/concourse,CloudCredo/concourse