RUBY-836 return, not pass and don't test on jruby 32bit
Merge pull request #531 from estolfo/RUBY-836-unix-sock

RUBY-836 return, not pass and don't test on jruby with 32 bit
RUBY-836 Skip unix socket test if on JRuby
RUBY-800 Remove complex connect test because it doesn't test anything useful
RUBY-800 Fix read preference tests
RUBY-800 Add removed lines back into primary test
RUBY-800 More reliable query route test