Fix issue with validator when disable_ssl = true

https://github.com/puppetlabs/puppetlabs-puppetdb/issues/106
Enable soft_write_failure setting when $puppetdb::disablessl = true

The puppet agent will refuse to run if it can’t make a secure
connection to the puppetdb server.  This setting disables that in case
SSL is disabled.
Merge pull request #107 from ebarrere/ebFix_puppetdb_conn_validator

Fix puppetlabs#106 and one other bug when disable_ssl = true
Define parameter in puppetdb class to define postgres listen address
Merge pull request #112 from adrianlzt/feature/allow_define_postgres_listen_address

Define parameter in puppetdb class to define postgres listen address
Enable fast finish in Travis

http://blog.travis-ci.com/2013-11-27-fast-finishing-builds/
Merge pull request #113 from ghoneycutt/enable_travis_fast_finish

Enable fast finish in Travis