add read-timeout to connection execute method as the underlying thrift interface does not implement it
Merge branch 'master' of github.com:simplereach/helenus

* 'master' of github.com:simplereach/helenus:
  fix failling test
  add history lines for merged requests
  wrong version
  bump C* versions
  bump version
  fix deserialization of collection types
  fix (datetype): uses long if post-epoch date, datestring for pre, to account for https://issues.apache.org/jira/browse/CASSANDRA-6212
  Fix Thrift readme example
  fix: escapes date as iso string in utc to work with all versions of cql
  fix: handles pre-epoch dates for cassandra < 2.*
  fix: separated the different timestamps (current, future, pre-epoch) out into their own tests
  fix: escapeCql handles invalid date objects tests: adds tests for timestamps
  feat: adds Date support to escapeCQL function
bump travis to latest C* versions